86978368 has 28 divisors (see below), whose sum is σ = 174792640. Its totient is φ = 42936192.

The previous prime is 86978357. The next prime is 86978369. The reversal of 86978368 is 86387968.

It is a super-3 number, since 3×86978368³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86978369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546 + ... + 13657.

Almost surely, 2^86978368 is an apocalyptic number.

It is an amenable number.

86978368 is an abundant number, since it is smaller than the sum of its proper divisors (87814272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86978368 is a wasteful number, since it uses less digits than its factorization.

86978368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17294 (or 17284 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 86978368 is about 9326.2193840806. The cubic root of 86978368 is about 443.0680340592.

The spelling of 86978368 in words is "eighty-six million, nine hundred seventy-eight thousand, three hundred sixty-eight".