23728707 has 12 divisors (see below), whose sum is σ = 35544600. Its totient is φ = 15818976.

The previous prime is 23728693. The next prime is 23728711. The reversal of 23728707 is 70782732.

It is not a de Polignac number, because 23728707 - 2²⁴ = 6951491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23728717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48582 + ... + 49067.

It is an arithmetic number, because the mean of its divisors is an integer number (2962050).

Almost surely, 2^23728707 is an apocalyptic number.

23728707 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23728707 is a deficient number, since it is larger than the sum of its proper divisors (11815893).

23728707 is an frugal number, since it uses more digits than its factorization.

23728707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97664 (or 97652 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 23728707 is about 4871.2120668269. The cubic root of 23728707 is about 287.3589256201.

The spelling of 23728707 in words is "twenty-three million, seven hundred twenty-eight thousand, seven hundred seven".