84047501 has 2 divisors, whose sum is σ = 84047502. Its totient is φ = 84047500.

The previous prime is 84047477. The next prime is 84047503. The reversal of 84047501 is 10574048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 35117476 = 6995^2 + 5926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84047501 is a prime.

Together with 84047503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84047503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42023750 + 42023751.

It is an arithmetic number, because the mean of its divisors is an integer number (42023751).

Almost surely, 2^84047501 is an apocalyptic number.

It is an amenable number.

84047501 is a deficient number, since it is larger than the sum of its proper divisors (1).

84047501 is an equidigital number, since it uses as much as digits as its factorization.

84047501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 84047501 is about 9167.7424156659. The cubic root of 84047501 is about 438.0344506308.

It can be divided in two parts, 84047 and 501, that added together give a palindrome (84548).

The spelling of 84047501 in words is "eighty-four million, forty-seven thousand, five hundred one".