86021404 has 24 divisors (see below), whose sum is σ = 177594368. Its totient is φ = 35676720.

The previous prime is 86021393. The next prime is 86021431. The reversal of 86021404 is 40412068.

It is a super-2 number, since 2×86021404² = 14799363892262432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48684 + ... + 50419.

Almost surely, 2^86021404 is an apocalyptic number.

It is an amenable number.

86021404 is an abundant number, since it is smaller than the sum of its proper divisors (91572964).

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

86021404 is a wasteful number, since it uses less digits than its factorization.

86021404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99145 (or 99143 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 86021404 is about 9274.7724500389. The cubic root of 86021404 is about 441.4371123393.

The spelling of 86021404 in words is "eighty-six million, twenty-one thousand, four hundred four".