86923089 has 12 divisors (see below), whose sum is σ = 136969872. Its totient is φ = 52680600.

The previous prime is 86923087. The next prime is 86923097. The reversal of 86923089 is 98032968.

It is not a de Polignac number, because 86923089 - 2¹ = 86923087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86923087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438907 + ... + 439104.

It is an arithmetic number, because the mean of its divisors is an integer number (11414156).

Almost surely, 2^86923089 is an apocalyptic number.

It is an amenable number.

86923089 is a deficient number, since it is larger than the sum of its proper divisors (50046783).

86923089 is a wasteful number, since it uses less digits than its factorization.

86923089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878028 (or 878025 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 86923089 is about 9323.2552791394. The cubic root of 86923089 is about 442.9741503769.

It can be divided in two parts, 8692 and 3089, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 86923089 in words is "eighty-six million, nine hundred twenty-three thousand, eighty-nine".