573609997 has 2 divisors, whose sum is σ = 573609998. Its totient is φ = 573609996.

The previous prime is 573609991. The next prime is 573610013. The reversal of 573609997 is 799906375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564252516 + 9357481 = 23754^2 + 3059^2 .

It is a cyclic number.

It is not a de Polignac number, because 573609997 - 2³ = 573609989 is a 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 (573609991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286804998 + 286804999.

It is an arithmetic number, because the mean of its divisors is an integer number (286804999).

Almost surely, 2^573609997 is an apocalyptic number.

It is an amenable number.

573609997 is a deficient number, since it is larger than the sum of its proper divisors (1).

573609997 is an equidigital number, since it uses as much as digits as its factorization.

573609997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3214890, while the sum is 55.

The square root of 573609997 is about 23950.1565130585. The cubic root of 573609997 is about 830.8811453222.

The spelling of 573609997 in words is "five hundred seventy-three million, six hundred nine thousand, nine hundred ninety-seven".