86942501 has 2 divisors, whose sum is σ = 86942502. Its totient is φ = 86942500.

The previous prime is 86942477. The next prime is 86942521. The reversal of 86942501 is 10524968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86304100 + 638401 = 9290^2 + 799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86942501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86942521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43471250 + 43471251.

It is an arithmetic number, because the mean of its divisors is an integer number (43471251).

Almost surely, 2^86942501 is an apocalyptic number.

It is an amenable number.

86942501 is a deficient number, since it is larger than the sum of its proper divisors (1).

86942501 is an equidigital number, since it uses as much as digits as its factorization.

86942501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 86942501 is about 9324.2962737142. The cubic root of 86942501 is about 443.0071234886.

The spelling of 86942501 in words is "eighty-six million, nine hundred forty-two thousand, five hundred one".