86264638 has 4 divisors (see below), whose sum is σ = 129396960. Its totient is φ = 43132318.

The previous prime is 86264609. The next prime is 86264687. The reversal of 86264638 is 83646268.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 86264594 and 86264603.

It is a congruent number.

It is an unprimeable number.

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, 21566158 + ... + 21566161.

It is an arithmetic number, because the mean of its divisors is an integer number (32349240).

Almost surely, 2^86264638 is an apocalyptic number.

86264638 is a deficient number, since it is larger than the sum of its proper divisors (43132322).

86264638 is a wasteful number, since it uses less digits than its factorization.

86264638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43132321.

The product of its digits is 331776, while the sum is 43.

The square root of 86264638 is about 9287.8758604968. The cubic root of 86264638 is about 441.8527897798.

The spelling of 86264638 in words is "eighty-six million, two hundred sixty-four thousand, six hundred thirty-eight".