88639423 has 2 divisors, whose sum is σ = 88639424. Its totient is φ = 88639422.

The previous prime is 88639393. The next prime is 88639477. The reversal of 88639423 is 32493688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88639423 - 2¹⁷ = 88508351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88639423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88639823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44319711 + 44319712.

It is an arithmetic number, because the mean of its divisors is an integer number (44319712).

Almost surely, 2^88639423 is an apocalyptic number.

88639423 is a deficient number, since it is larger than the sum of its proper divisors (1).

88639423 is an equidigital number, since it uses as much as digits as its factorization.

88639423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 88639423 is about 9414.8511937258. The cubic root of 88639423 is about 445.8707404915.

The spelling of 88639423 in words is "eighty-eight million, six hundred thirty-nine thousand, four hundred twenty-three".