23531398 has 8 divisors (see below), whose sum is σ = 38505960. Its totient is φ = 10696080.

The previous prime is 23531359. The next prime is 23531401. The reversal of 23531398 is 89313532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534783 + ... + 534826.

It is an arithmetic number, because the mean of its divisors is an integer number (4813245).

Almost surely, 2^23531398 is an apocalyptic number.

23531398 is a deficient number, since it is larger than the sum of its proper divisors (14974562).

23531398 is a wasteful number, since it uses less digits than its factorization.

23531398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069622.

The product of its digits is 19440, while the sum is 34.

The square root of 23531398 is about 4850.9172328540. The cubic root of 23531398 is about 286.5602251900.

The spelling of 23531398 in words is "twenty-three million, five hundred thirty-one thousand, three hundred ninety-eight".