577980997 has 4 divisors (see below), whose sum is σ = 630524736. Its totient is φ = 525437260.

The previous prime is 577980979. The next prime is 577981003. The reversal of 577980997 is 799089775.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 577980997 - 2¹⁵ = 577948229 is a prime.

It is a super-2 number, since 2×577980997² = 668124065786228018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577980397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26271853 + ... + 26271874.

It is an arithmetic number, because the mean of its divisors is an integer number (157631184).

Almost surely, 2^577980997 is an apocalyptic number.

It is an amenable number.

577980997 is a deficient number, since it is larger than the sum of its proper divisors (52543739).

577980997 is a wasteful number, since it uses less digits than its factorization.

577980997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52543738.

The product of its (nonzero) digits is 10001880, while the sum is 61.

The square root of 577980997 is about 24041.2353467953. The cubic root of 577980997 is about 832.9862896084.

The spelling of 577980997 in words is "five hundred seventy-seven million, nine hundred eighty thousand, nine hundred ninety-seven".