86723451 has 12 divisors (see below), whose sum is σ = 127391160. Its totient is φ = 56835360.

The previous prime is 86723411. The next prime is 86723471. The reversal of 86723451 is 15432768.

It is not a de Polignac number, because 86723451 - 2²² = 82529147 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (86723411) 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, 81130 + ... + 82191.

It is an arithmetic number, because the mean of its divisors is an integer number (10615930).

Almost surely, 2^86723451 is an apocalyptic number.

86723451 is a deficient number, since it is larger than the sum of its proper divisors (40667709).

86723451 is a wasteful number, since it uses less digits than its factorization.

86723451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163386 (or 163383 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 86723451 is about 9312.5426710432. The cubic root of 86723451 is about 442.6347612149.

The spelling of 86723451 in words is "eighty-six million, seven hundred twenty-three thousand, four hundred fifty-one".