86670378 has 32 divisors (see below), whose sum is σ = 192931200. Its totient is φ = 28840608.

The previous prime is 86670361. The next prime is 86670379. The reversal of 86670378 is 87307668.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (86670379) 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 15 ways as a sum of consecutive naturals, for example, 44350 + ... + 46262.

It is an arithmetic number, because the mean of its divisors is an integer number (6029100).

Almost surely, 2^86670378 is an apocalyptic number.

86670378 is an abundant number, since it is smaller than the sum of its proper divisors (106260822).

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

86670378 is a wasteful number, since it uses less digits than its factorization.

86670378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 86670378 is about 9309.6926909539. The cubic root of 86670378 is about 442.5444482786.

The spelling of 86670378 in words is "eighty-six million, six hundred seventy thousand, three hundred seventy-eight".