86973512 has 8 divisors (see below), whose sum is σ = 163075350. Its totient is φ = 43486752.

The previous prime is 86973503. The next prime is 86973521. The reversal of 86973512 is 21537968.

It is an interprime number because it is at equal distance from previous prime (86973503) and next prime (86973521).

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 6584356 = 8966^2 + 2566^2 .

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

It is a super-2 number, since 2×86973512² = 15128783579228288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86973512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435837 + ... + 5435852.

Almost surely, 2^86973512 is an apocalyptic number.

It is an amenable number.

86973512 is a deficient number, since it is larger than the sum of its proper divisors (76101838).

86973512 is a wasteful number, since it uses less digits than its factorization.

86973512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871695 (or 10871691 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 86973512 is about 9325.9590391552. The cubic root of 86973512 is about 443.0597884135.

The spelling of 86973512 in words is "eighty-six million, nine hundred seventy-three thousand, five hundred twelve".