88635431 has 2 divisors, whose sum is σ = 88635432. Its totient is φ = 88635430.

The previous prime is 88635413. The next prime is 88635457. The reversal of 88635431 is 13453688.

Together with previous prime (88635413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88635431 - 2¹⁰ = 88634407 is a prime.

It is a super-2 number, since 2×88635431² = 15712479257111522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88632431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44317715 + 44317716.

It is an arithmetic number, because the mean of its divisors is an integer number (44317716).

Almost surely, 2^88635431 is an apocalyptic number.

88635431 is a deficient number, since it is larger than the sum of its proper divisors (1).

88635431 is an equidigital number, since it uses as much as digits as its factorization.

88635431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 88635431 is about 9414.6391858637. The cubic root of 88635431 is about 445.8640469209.

The spelling of 88635431 in words is "eighty-eight million, six hundred thirty-five thousand, four hundred thirty-one".