576400991 has 2 divisors, whose sum is σ = 576400992. Its totient is φ = 576400990.

The previous prime is 576400973. The next prime is 576401029. The reversal of 576400991 is 199004675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 576400991 - 2⁶ = 576400927 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (576400901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288200495 + 288200496.

It is an arithmetic number, because the mean of its divisors is an integer number (288200496).

Almost surely, 2^576400991 is an apocalyptic number.

576400991 is a deficient number, since it is larger than the sum of its proper divisors (1).

576400991 is an equidigital number, since it uses as much as digits as its factorization.

576400991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 576400991 is about 24008.3525257357. The cubic root of 576400991 is about 832.2265619548.

The spelling of 576400991 in words is "five hundred seventy-six million, four hundred thousand, nine hundred ninety-one".