23720475 has 24 divisors (see below), whose sum is σ = 40925952. Its totient is φ = 12100000.

The previous prime is 23720467. The next prime is 23720497. The reversal of 23720475 is 57402732.

It is not a de Polignac number, because 23720475 - 2³ = 23720467 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5151 + ... + 8600.

It is an arithmetic number, because the mean of its divisors is an integer number (1705248).

Almost surely, 2^23720475 is an apocalyptic number.

23720475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23720475 is a deficient number, since it is larger than the sum of its proper divisors (17205477).

23720475 is a wasteful number, since it uses less digits than its factorization.

23720475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787 (or 13782 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 23720475 is about 4870.3670292905. The cubic root of 23720475 is about 287.3256914412.

The spelling of 23720475 in words is "twenty-three million, seven hundred twenty thousand, four hundred seventy-five".