88672139 has 2 divisors, whose sum is σ = 88672140. Its totient is φ = 88672138.

The previous prime is 88672123. The next prime is 88672147. The reversal of 88672139 is 93127688.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88672139 - 2⁴ = 88672123 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88672139.

It is not a weakly prime, because it can be changed into another prime (88672109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44336069 + 44336070.

It is an arithmetic number, because the mean of its divisors is an integer number (44336070).

Almost surely, 2^88672139 is an apocalyptic number.

88672139 is a deficient number, since it is larger than the sum of its proper divisors (1).

88672139 is an equidigital number, since it uses as much as digits as its factorization.

88672139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 88672139 is about 9416.5885011505. The cubic root of 88672139 is about 445.9255893476.

The spelling of 88672139 in words is "eighty-eight million, six hundred seventy-two thousand, one hundred thirty-nine".