86932021 has 8 divisors (see below), whose sum is σ = 95001984. Its totient is φ = 78889920.

The previous prime is 86932009. The next prime is 86932037. The reversal of 86932021 is 12023968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86932021 - 2²⁵ = 53377589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86932081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (11875248).

Almost surely, 2^86932021 is an apocalyptic number.

It is an amenable number.

86932021 is a deficient number, since it is larger than the sum of its proper divisors (8069963).

86932021 is a wasteful number, since it uses less digits than its factorization.

86932021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 86932021 is about 9323.7342840731. The cubic root of 86932021 is about 442.9893228305.

Adding to 86932021 its reverse (12023968), we get a palindrome (98955989).

The spelling of 86932021 in words is "eighty-six million, nine hundred thirty-two thousand, twenty-one".