57776398 has 4 divisors (see below), whose sum is σ = 86664600. Its totient is φ = 28888198.

The previous prime is 57776393. The next prime is 57776419. The reversal of 57776398 is 89367775.

It is a happy number.

57776398 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 is a super-2 number, since 2×57776398² = 6676224331708808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57776393) 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 as a sum of consecutive naturals, namely, 14444098 + ... + 14444101.

It is an arithmetic number, because the mean of its divisors is an integer number (21666150).

Almost surely, 2^57776398 is an apocalyptic number.

57776398 is a deficient number, since it is larger than the sum of its proper divisors (28888202).

57776398 is a wasteful number, since it uses less digits than its factorization.

57776398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28888201.

The product of its digits is 2222640, while the sum is 52.

The square root of 57776398 is about 7601.0787392317. The cubic root of 57776398 is about 386.5895891087.

The spelling of 57776398 in words is "fifty-seven million, seven hundred seventy-six thousand, three hundred ninety-eight".