86685454 has 4 divisors (see below), whose sum is σ = 130028184. Its totient is φ = 43342726.

The previous prime is 86685433. The next prime is 86685457. The reversal of 86685454 is 45458668.

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

It is a super-2 number, since 2×86685454² = 15028735870372232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86685457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21671362 + ... + 21671365.

It is an arithmetic number, because the mean of its divisors is an integer number (32507046).

Almost surely, 2^86685454 is an apocalyptic number.

86685454 is a deficient number, since it is larger than the sum of its proper divisors (43342730).

86685454 is a wasteful number, since it uses less digits than its factorization.

86685454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43342729.

The product of its digits is 921600, while the sum is 46.

The square root of 86685454 is about 9310.5023494976. The cubic root of 86685454 is about 442.5701064617.

It can be divided in two parts, 866 and 85454, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 86685454 in words is "eighty-six million, six hundred eighty-five thousand, four hundred fifty-four".