84787741 has 2 divisors, whose sum is σ = 84787742. Its totient is φ = 84787740.

The previous prime is 84787727. The next prime is 84787771. The reversal of 84787741 is 14778748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78765625 + 6022116 = 8875^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 84787741 - 2⁹ = 84787229 is a prime.

It is a super-2 number, since 2×84787741² = 14377922047766162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84787691 and 84787700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84787711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42393870 + 42393871.

It is an arithmetic number, because the mean of its divisors is an integer number (42393871).

Almost surely, 2^84787741 is an apocalyptic number.

It is an amenable number.

84787741 is a deficient number, since it is larger than the sum of its proper divisors (1).

84787741 is an equidigital number, since it uses as much as digits as its factorization.

84787741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 351232, while the sum is 46.

The square root of 84787741 is about 9208.0259013537. The cubic root of 84787741 is about 439.3166752201.

It can be divided in two parts, 847 and 87741, that added together give a palindrome (88588).

The spelling of 84787741 in words is "eighty-four million, seven hundred eighty-seven thousand, seven hundred forty-one".