86645454 has 32 divisors (see below), whose sum is σ = 199979520. Its totient is φ = 24514272.

The previous prime is 86645441. The next prime is 86645459. The reversal of 86645454 is 45454668.

It is a super-2 number, since 2×86645454² = 15014869397732232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86645459) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 5689 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (6249360).

Almost surely, 2^86645454 is an apocalyptic number.

86645454 is an abundant number, since it is smaller than the sum of its proper divisors (113334066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86645454 is a wasteful number, since it uses less digits than its factorization.

86645454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20144.

The product of its digits is 460800, while the sum is 42.

The square root of 86645454 is about 9308.3539898309. The cubic root of 86645454 is about 442.5020230365.

The spelling of 86645454 in words is "eighty-six million, six hundred forty-five thousand, four hundred fifty-four".