86554404 has 18 divisors (see below), whose sum is σ = 218790390. Its totient is φ = 28851456.

The previous prime is 86554379. The next prime is 86554409. The reversal of 86554404 is 40445568.

It can be written as a sum of positive squares in only one way, i.e., 77264100 + 9290304 = 8790^2 + 3048^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2404289 = 86554404 / (8 + 6 + 5 + 5 + 4 + 4 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (86554409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1202109 + ... + 1202180.

Almost surely, 2^86554404 is an apocalyptic number.

It is an amenable number.

86554404 is an abundant number, since it is smaller than the sum of its proper divisors (132235986).

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

86554404 is a wasteful number, since it uses less digits than its factorization.

86554404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404299 (or 2404294 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 86554404 is about 9303.4619362902. The cubic root of 86554404 is about 442.3469699698.

The spelling of 86554404 in words is "eighty-six million, five hundred fifty-four thousand, four hundred four".