677925929 has 2 divisors, whose sum is σ = 677925930. Its totient is φ = 677925928.

The previous prime is 677925883. The next prime is 677925967. The reversal of 677925929 is 929529776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512931904 + 164994025 = 22648^2 + 12845^2 .

It is a cyclic number.

It is not a de Polignac number, because 677925929 - 2²⁰ = 676877353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (677925629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338962964 + 338962965.

It is an arithmetic number, because the mean of its divisors is an integer number (338962965).

Almost surely, 2^677925929 is an apocalyptic number.

It is an amenable number.

677925929 is a deficient number, since it is larger than the sum of its proper divisors (1).

677925929 is an equidigital number, since it uses as much as digits as its factorization.

677925929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 56.

The square root of 677925929 is about 26037.0107539249. The cubic root of 677925929 is about 878.4709712649.

The spelling of 677925929 in words is "six hundred seventy-seven million, nine hundred twenty-five thousand, nine hundred twenty-nine".