86672638 has 16 divisors (see below), whose sum is σ = 141785280. Its totient is φ = 39495456.

The previous prime is 86672617. The next prime is 86672657. The reversal of 86672638 is 83627668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19045 + ... + 23152.

It is an arithmetic number, because the mean of its divisors is an integer number (8861580).

Almost surely, 2^86672638 is an apocalyptic number.

86672638 is a deficient number, since it is larger than the sum of its proper divisors (55112642).

86672638 is a wasteful number, since it uses less digits than its factorization.

86672638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42291.

The product of its digits is 580608, while the sum is 46.

The square root of 86672638 is about 9309.8140690349. The cubic root of 86672638 is about 442.5482948129.

The spelling of 86672638 in words is "eighty-six million, six hundred seventy-two thousand, six hundred thirty-eight".