84625769 has 2 divisors, whose sum is σ = 84625770. Its totient is φ = 84625768.

The previous prime is 84625733. The next prime is 84625811. The reversal of 84625769 is 96752648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81667369 + 2958400 = 9037^2 + 1720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84625769 is a prime.

It is a super-2 number, since 2×84625769² = 14323041557682722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84625729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42312884 + 42312885.

It is an arithmetic number, because the mean of its divisors is an integer number (42312885).

Almost surely, 2^84625769 is an apocalyptic number.

It is an amenable number.

84625769 is a deficient number, since it is larger than the sum of its proper divisors (1).

84625769 is an equidigital number, since it uses as much as digits as its factorization.

84625769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 84625769 is about 9199.2265435742. The cubic root of 84625769 is about 439.0367512642.

The spelling of 84625769 in words is "eighty-four million, six hundred twenty-five thousand, seven hundred sixty-nine".