88638031 has 2 divisors, whose sum is σ = 88638032. Its totient is φ = 88638030.

The previous prime is 88638019. The next prime is 88638049. The reversal of 88638031 is 13083688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88638031 - 2⁹ = 88637519 is a prime.

It is a super-2 number, since 2×88638031² = 15713401079113922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88638091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44319015 + 44319016.

It is an arithmetic number, because the mean of its divisors is an integer number (44319016).

Almost surely, 2^88638031 is an apocalyptic number.

88638031 is a deficient number, since it is larger than the sum of its proper divisors (1).

88638031 is an equidigital number, since it uses as much as digits as its factorization.

88638031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 88638031 is about 9414.7772676787. Note that the first 3 decimals coincide. The cubic root of 88638031 is about 445.8684064837.

The spelling of 88638031 in words is "eighty-eight million, six hundred thirty-eight thousand, thirty-one".