23163649 has 2 divisors, whose sum is σ = 23163650. Its totient is φ = 23163648.

The previous prime is 23163631. The next prime is 23163659. The reversal of 23163649 is 94636132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14938225 + 8225424 = 3865^2 + 2868^2 .

It is a cyclic number.

It is not a de Polignac number, because 23163649 - 2⁵ = 23163617 is a prime.

It is not a weakly prime, because it can be changed into another prime (23163619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11581824 + 11581825.

It is an arithmetic number, because the mean of its divisors is an integer number (11581825).

Almost surely, 2^23163649 is an apocalyptic number.

It is an amenable number.

23163649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23163649 is an equidigital number, since it uses as much as digits as its factorization.

23163649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 23163649 is about 4812.8628694364. The cubic root of 23163649 is about 285.0595915197.

The spelling of 23163649 in words is "twenty-three million, one hundred sixty-three thousand, six hundred forty-nine".