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84045641 is a prime number
BaseRepresentation
bin1010000001001…
…10111101001001
312212010221221112
411000212331021
5133003430031
612201220105
72040243011
oct500467511
9185127845
1084045641
1143494809
1224191635
1314548964
14b23ac41
1575a262b
hex5026f49

84045641 has 2 divisors, whose sum is σ = 84045642. Its totient is φ = 84045640.

The previous prime is 84045581. The next prime is 84045653. The reversal of 84045641 is 14654048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78145600 + 5900041 = 8840^2 + 2429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84045641 is a prime.

It is a super-2 number, since 2×840456412 = 14127339542201762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84045598 and 84045607.

It is not a weakly prime, because it can be changed into another prime (84041641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42022820 + 42022821.

It is an arithmetic number, because the mean of its divisors is an integer number (42022821).

Almost surely, 284045641 is an apocalyptic number.

It is an amenable number.

84045641 is a deficient number, since it is larger than the sum of its proper divisors (1).

84045641 is an equidigital number, since it uses as much as digits as its factorization.

84045641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 84045641 is about 9167.6409724640. The cubic root of 84045641 is about 438.0312193228.

Adding to 84045641 its reverse (14654048), we get a palindrome (98699689).

The spelling of 84045641 in words is "eighty-four million, forty-five thousand, six hundred forty-one".