23170738 has 4 divisors (see below), whose sum is σ = 34756110. Its totient is φ = 11585368.

The previous prime is 23170723. The next prime is 23170751. The reversal of 23170738 is 83707132.

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., 15031129 + 8139609 = 3877^2 + 2853^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5792683 + ... + 5792686.

Almost surely, 2^23170738 is an apocalyptic number.

23170738 is a deficient number, since it is larger than the sum of its proper divisors (11585372).

23170738 is a wasteful number, since it uses less digits than its factorization.

23170738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11585371.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 23170738 is about 4813.5992770483. The cubic root of 23170738 is about 285.0886684199.

The spelling of 23170738 in words is "twenty-three million, one hundred seventy thousand, seven hundred thirty-eight".