23720631 has 8 divisors (see below), whose sum is σ = 34502784. Its totient is φ = 14376120.

The previous prime is 23720629. The next prime is 23720633. The reversal of 23720631 is 13602732.

It is an interprime number because it is at equal distance from previous prime (23720629) and next prime (23720633).

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

It is not a de Polignac number, because 23720631 - 2¹ = 23720629 is a prime.

It is a super-2 number, since 2×23720631² = 1125336670076322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23720633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359371 + ... + 359436.

It is an arithmetic number, because the mean of its divisors is an integer number (4312848).

Almost surely, 2^23720631 is an apocalyptic number.

23720631 is a deficient number, since it is larger than the sum of its proper divisors (10782153).

23720631 is a wasteful number, since it uses less digits than its factorization.

23720631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718821.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 23720631 is about 4870.3830444843. The cubic root of 23720631 is about 287.3263213149.

The spelling of 23720631 in words is "twenty-three million, seven hundred twenty thousand, six hundred thirty-one".