23500749 has 16 divisors (see below), whose sum is σ = 33989760. Its totient is φ = 14384640.

The previous prime is 23500709. The next prime is 23500753. The reversal of 23500749 is 94700532.

23500749 = 737² + 738² + ... + 777².

It is not a de Polignac number, because 23500749 - 2⁷ = 23500621 is a prime.

It is a super-2 number, since 2×23500749² = 1104570407122002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23500709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3529 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (2124360).

Almost surely, 2^23500749 is an apocalyptic number.

It is an amenable number.

23500749 is a deficient number, since it is larger than the sum of its proper divisors (10489011).

23500749 is a wasteful number, since it uses less digits than its factorization.

23500749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23500749 is about 4847.7571102521. The cubic root of 23500749 is about 286.4357588605.

The spelling of 23500749 in words is "twenty-three million, five hundred thousand, seven hundred forty-nine".