379356557 has 4 divisors (see below), whose sum is σ = 379632636. Its totient is φ = 379080480.

The previous prime is 379356553. The next prime is 379356577. The reversal of 379356557 is 755653973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 755653973 = 4283 ⋅176431.

It can be written as a sum of positive squares in 2 ways, for example, as 311557801 + 67798756 = 17651^2 + 8234^2 .

It is a cyclic number.

It is not a de Polignac number, because 379356557 - 2² = 379356553 is a prime.

It is a super-2 number, since 2×379356557² = 287822794677788498, 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 (379356553) 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, 135968 + ... + 138729.

It is an arithmetic number, because the mean of its divisors is an integer number (94908159).

Almost surely, 2^379356557 is an apocalyptic number.

It is an amenable number.

379356557 is a deficient number, since it is larger than the sum of its proper divisors (276079).

379356557 is a wasteful number, since it uses less digits than its factorization.

379356557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276078.

The product of its digits is 2976750, while the sum is 50.

The square root of 379356557 is about 19477.0777325553. The cubic root of 379356557 is about 723.9065924741.

The spelling of 379356557 in words is "three hundred seventy-nine million, three hundred fifty-six thousand, five hundred fifty-seven".