86994613 has 2 divisors, whose sum is σ = 86994614. Its totient is φ = 86994612.

The previous prime is 86994599. The next prime is 86994623. The reversal of 86994613 is 31649968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85414564 + 1580049 = 9242^2 + 1257^2 .

It is a cyclic number.

It is not a de Polignac number, because 86994613 - 2⁹ = 86994101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86994623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43497306 + 43497307.

It is an arithmetic number, because the mean of its divisors is an integer number (43497307).

Almost surely, 2^86994613 is an apocalyptic number.

It is an amenable number.

86994613 is a deficient number, since it is larger than the sum of its proper divisors (1).

86994613 is an equidigital number, since it uses as much as digits as its factorization.

86994613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 86994613 is about 9327.0902751072. The cubic root of 86994613 is about 443.0956163662.

The spelling of 86994613 in words is "eighty-six million, nine hundred ninety-four thousand, six hundred thirteen".