86623870 has 32 divisors (see below), whose sum is σ = 162025920. Its totient is φ = 33304320.

The previous prime is 86623853. The next prime is 86623871. The reversal of 86623870 is 7832668.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86623871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80959 + ... + 82021.

It is an arithmetic number, because the mean of its divisors is an integer number (5063310).

Almost surely, 2^86623870 is an apocalyptic number.

86623870 is a deficient number, since it is larger than the sum of its proper divisors (75402050).

86623870 is a wasteful number, since it uses less digits than its factorization.

86623870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 86623870 is about 9307.1945289652. The cubic root of 86623870 is about 442.4652765160.

The spelling of 86623870 in words is "eighty-six million, six hundred twenty-three thousand, eight hundred seventy".