88009231 has 4 divisors (see below), whose sum is σ = 88037712. Its totient is φ = 87980752.

The previous prime is 88009219. The next prime is 88009237. The reversal of 88009231 is 13290088.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88009231 - 2¹⁵ = 87976463 is a prime.

It is a super-2 number, since 2×88009231² = 15491249482422722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88009193 and 88009202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88009237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8950 + ... + 16003.

It is an arithmetic number, because the mean of its divisors is an integer number (22009428).

Almost surely, 2^88009231 is an apocalyptic number.

88009231 is a deficient number, since it is larger than the sum of its proper divisors (28481).

88009231 is a wasteful number, since it uses less digits than its factorization.

88009231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28480.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 88009231 is about 9381.3235206979. The cubic root of 88009231 is about 444.8115702672.

The spelling of 88009231 in words is "eighty-eight million, nine thousand, two hundred thirty-one".