23820907 has 10 divisors (see below), whose sum is σ = 26218940. Its totient is φ = 21642060.

The previous prime is 23820883. The next prime is 23820931. The reversal of 23820907 is 70902832.

It is an interprime number because it is at equal distance from previous prime (23820883) and next prime (23820931).

It is not a de Polignac number, because 23820907 - 2¹⁵ = 23788139 is a prime.

It is a super-2 number, since 2×23820907² = 1134871220605298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23820967) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13828 + ... + 15454.

It is an arithmetic number, because the mean of its divisors is an integer number (2621894).

Almost surely, 2^23820907 is an apocalyptic number.

23820907 is a deficient number, since it is larger than the sum of its proper divisors (2398033).

23820907 is an frugal number, since it uses more digits than its factorization.

23820907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 23820907 is about 4880.6666552839. Note that the first 4 decimals coincide. The cubic root of 23820907 is about 287.7306308189.

The spelling of 23820907 in words is "twenty-three million, eight hundred twenty thousand, nine hundred seven".