86992597 has 2 divisors, whose sum is σ = 86992598. Its totient is φ = 86992596.

The previous prime is 86992589. The next prime is 86992643. The reversal of 86992597 is 79529968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86881041 + 111556 = 9321^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 86992597 - 2³ = 86992589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86992517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43496298 + 43496299.

It is an arithmetic number, because the mean of its divisors is an integer number (43496299).

Almost surely, 2^86992597 is an apocalyptic number.

It is an amenable number.

86992597 is a deficient number, since it is larger than the sum of its proper divisors (1).

86992597 is an equidigital number, since it uses as much as digits as its factorization.

86992597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 55.

The square root of 86992597 is about 9326.9822021917. The cubic root of 86992597 is about 443.0921935962.

The spelling of 86992597 in words is "eighty-six million, nine hundred ninety-two thousand, five hundred ninety-seven".