86404072 has 8 divisors (see below), whose sum is σ = 162007650. Its totient is φ = 43202032.

The previous prime is 86404061. The next prime is 86404093. The reversal of 86404072 is 27040468.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 37039396 = 7026^2 + 6086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5400247 + ... + 5400262.

Almost surely, 2^86404072 is an apocalyptic number.

It is an amenable number.

86404072 is a deficient number, since it is larger than the sum of its proper divisors (75603578).

86404072 is a wasteful number, since it uses less digits than its factorization.

86404072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10800515 (or 10800511 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 86404072 is about 9295.3790670419. The cubic root of 86404072 is about 442.0907248093.

The spelling of 86404072 in words is "eighty-six million, four hundred four thousand, seventy-two".