23497666 has 4 divisors (see below), whose sum is σ = 35246502. Its totient is φ = 11748832.

The previous prime is 23497657. The next prime is 23497673. The reversal of 23497666 is 66679432.

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

It can be written as a sum of positive squares in only one way, i.e., 22363441 + 1134225 = 4729^2 + 1065^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5874415 + ... + 5874418.

Almost surely, 2^23497666 is an apocalyptic number.

23497666 is a deficient number, since it is larger than the sum of its proper divisors (11748836).

23497666 is a wasteful number, since it uses less digits than its factorization.

23497666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748835.

The product of its digits is 326592, while the sum is 43.

The square root of 23497666 is about 4847.4391177198. The cubic root of 23497666 is about 286.4232327340.

The spelling of 23497666 in words is "twenty-three million, four hundred ninety-seven thousand, six hundred sixty-six".