577668893 has 4 divisors (see below), whose sum is σ = 597588540. Its totient is φ = 557749248.

The previous prime is 577668881. The next prime is 577668907. The reversal of 577668893 is 398866775.

577668893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 454414489 + 123254404 = 21317^2 + 11102^2 .

It is a cyclic number.

It is not a de Polignac number, because 577668893 - 2²⁴ = 560891677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577668863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9959780 + ... + 9959837.

It is an arithmetic number, because the mean of its divisors is an integer number (149397135).

Almost surely, 2^577668893 is an apocalyptic number.

It is an amenable number.

577668893 is a deficient number, since it is larger than the sum of its proper divisors (19919647).

577668893 is a wasteful number, since it uses less digits than its factorization.

577668893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19919646.

The product of its digits is 15240960, while the sum is 59.

The square root of 577668893 is about 24034.7434560887. The cubic root of 577668893 is about 832.8363278371.

The spelling of 577668893 in words is "five hundred seventy-seven million, six hundred sixty-eight thousand, eight hundred ninety-three".