23173967 has 2 divisors, whose sum is σ = 23173968. Its totient is φ = 23173966.

The previous prime is 23173963. The next prime is 23173981. The reversal of 23173967 is 76937132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23173967 - 2² = 23173963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23173967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23173963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11586983 + 11586984.

It is an arithmetic number, because the mean of its divisors is an integer number (11586984).

Almost surely, 2^23173967 is an apocalyptic number.

23173967 is a deficient number, since it is larger than the sum of its proper divisors (1).

23173967 is an equidigital number, since it uses as much as digits as its factorization.

23173967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 23173967 is about 4813.9346692700. The cubic root of 23173967 is about 285.1019108200.

The spelling of 23173967 in words is "twenty-three million, one hundred seventy-three thousand, nine hundred sixty-seven".