86390672 has 10 divisors (see below), whose sum is σ = 167381958. Its totient is φ = 43195328.

The previous prime is 86390659. The next prime is 86390729. The reversal of 86390672 is 27609368.

It can be written as a sum of positive squares in only one way, i.e., 81793936 + 4596736 = 9044^2 + 2144^2 .

It is a super-3 number, since 3×86390672³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2699693 + ... + 2699724.

Almost surely, 2^86390672 is an apocalyptic number.

It is an amenable number.

86390672 is a deficient number, since it is larger than the sum of its proper divisors (80991286).

86390672 is a wasteful number, since it uses less digits than its factorization.

86390672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399425 (or 5399419 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 86390672 is about 9294.6582508449. The cubic root of 86390672 is about 442.0678697060.

The spelling of 86390672 in words is "eighty-six million, three hundred ninety thousand, six hundred seventy-two".