86642274 has 8 divisors (see below), whose sum is σ = 173284560. Its totient is φ = 28880756.

The previous prime is 86642263. The next prime is 86642279. The reversal of 86642274 is 47224668.

It is a sphenic number, since it is the product of 3 distinct primes.

86642274 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (86642279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7220184 + ... + 7220195.

It is an arithmetic number, because the mean of its divisors is an integer number (21660570).

Almost surely, 2^86642274 is an apocalyptic number.

86642274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86642274 is a wasteful number, since it uses less digits than its factorization.

86642274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440384.

The product of its digits is 129024, while the sum is 39.

The square root of 86642274 is about 9308.1831739604. The cubic root of 86642274 is about 442.4966095051.

The spelling of 86642274 in words is "eighty-six million, six hundred forty-two thousand, two hundred seventy-four".