23507497 has 4 divisors (see below), whose sum is σ = 25315780. Its totient is φ = 21699216.

The previous prime is 23507489. The next prime is 23507501. The reversal of 23507497 is 79470532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7096896 + 16410601 = 2664^2 + 4051^2 .

It is a cyclic number.

It is not a de Polignac number, because 23507497 - 2³ = 23507489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23507417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904122 + ... + 904147.

It is an arithmetic number, because the mean of its divisors is an integer number (6328945).

Almost surely, 2^23507497 is an apocalyptic number.

It is an amenable number.

23507497 is a deficient number, since it is larger than the sum of its proper divisors (1808283).

23507497 is a wasteful number, since it uses less digits than its factorization.

23507497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808282.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 23507497 is about 4848.4530522632. The cubic root of 23507497 is about 286.4631719375.

The spelling of 23507497 in words is "twenty-three million, five hundred seven thousand, four hundred ninety-seven".