86660404 has 6 divisors (see below), whose sum is σ = 151655714. Its totient is φ = 43330200.

The previous prime is 86660377. The next prime is 86660411. The reversal of 86660404 is 40406668.

It can be written as a sum of positive squares in only one way, i.e., 85599504 + 1060900 = 9252^2 + 1030^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86660404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10832547 + ... + 10832554.

Almost surely, 2^86660404 is an apocalyptic number.

It is an amenable number.

86660404 is a deficient number, since it is larger than the sum of its proper divisors (64995310).

86660404 is a wasteful number, since it uses less digits than its factorization.

86660404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21665105 (or 21665103 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 86660404 is about 9309.1569972796. The cubic root of 86660404 is about 442.5274716684.

The spelling of 86660404 in words is "eighty-six million, six hundred sixty thousand, four hundred four".