86961378 has 24 divisors (see below), whose sum is σ = 202318992. Its totient is φ = 24846024.

The previous prime is 86961289. The next prime is 86961389. The reversal of 86961378 is 87316968.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147600 + ... + 148187.

It is an arithmetic number, because the mean of its divisors is an integer number (8429958).

Almost surely, 2^86961378 is an apocalyptic number.

86961378 is an abundant number, since it is smaller than the sum of its proper divisors (115357614).

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

86961378 is a wasteful number, since it uses less digits than its factorization.

86961378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295806 (or 295799 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 86961378 is about 9325.3084667479. The cubic root of 86961378 is about 443.0391831457.

The spelling of 86961378 in words is "eighty-six million, nine hundred sixty-one thousand, three hundred seventy-eight".