86946997 has 2 divisors, whose sum is σ = 86946998. Its totient is φ = 86946996.

The previous prime is 86946991. The next prime is 86947001. The reversal of 86946997 is 79964968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60000516 + 26946481 = 7746^2 + 5191^2 .

86946997 is a truncatable prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86946997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86946991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43473498 + 43473499.

It is an arithmetic number, because the mean of its divisors is an integer number (43473499).

Almost surely, 2^86946997 is an apocalyptic number.

It is an amenable number.

86946997 is a deficient number, since it is larger than the sum of its proper divisors (1).

86946997 is an equidigital number, since it uses as much as digits as its factorization.

86946997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 86946997 is about 9324.5373611778. The cubic root of 86946997 is about 443.0147596684.

The spelling of 86946997 in words is "eighty-six million, nine hundred forty-six thousand, nine hundred ninety-seven".