654179923 has 2 divisors, whose sum is σ = 654179924. Its totient is φ = 654179922.

The previous prime is 654179891. The next prime is 654179927. The reversal of 654179923 is 329971456.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654179923 - 2⁵ = 654179891 is a prime.

It is not a weakly prime, because it can be changed into another prime (654179927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327089961 + 327089962.

It is an arithmetic number, because the mean of its divisors is an integer number (327089962).

Almost surely, 2^654179923 is an apocalyptic number.

654179923 is a deficient number, since it is larger than the sum of its proper divisors (1).

654179923 is an equidigital number, since it uses as much as digits as its factorization.

654179923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 654179923 is about 25576.9412361995. The cubic root of 654179923 is about 868.0919663541.

The spelling of 654179923 in words is "six hundred fifty-four million, one hundred seventy-nine thousand, nine hundred twenty-three".