86013128 has 8 divisors (see below), whose sum is σ = 161274630. Its totient is φ = 43006560.

The previous prime is 86013119. The next prime is 86013131. The reversal of 86013128 is 82131068.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 228484 = 9262^2 + 478^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 86013128.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5375813 + ... + 5375828.

Almost surely, 2^86013128 is an apocalyptic number.

It is an amenable number.

86013128 is a deficient number, since it is larger than the sum of its proper divisors (75261502).

86013128 is a wasteful number, since it uses less digits than its factorization.

86013128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751647 (or 10751643 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 86013128 is about 9274.3262828089. The cubic root of 86013128 is about 441.4229552011.

The spelling of 86013128 in words is "eighty-six million, thirteen thousand, one hundred twenty-eight".