84623117 has 2 divisors, whose sum is σ = 84623118. Its totient is φ = 84623116.

The previous prime is 84623113. The next prime is 84623159. The reversal of 84623117 is 71132648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82646281 + 1976836 = 9091^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 84623117 - 2² = 84623113 is a prime.

It is a super-2 number, since 2×84623117² = 14322143861591378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84623113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42311558 + 42311559.

It is an arithmetic number, because the mean of its divisors is an integer number (42311559).

Almost surely, 2^84623117 is an apocalyptic number.

It is an amenable number.

84623117 is a deficient number, since it is larger than the sum of its proper divisors (1).

84623117 is an equidigital number, since it uses as much as digits as its factorization.

84623117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 84623117 is about 9199.0823998919. The cubic root of 84623117 is about 439.0321650424.

The spelling of 84623117 in words is "eighty-four million, six hundred twenty-three thousand, one hundred seventeen".