1379894057 has 8 divisors (see below), whose sum is σ = 1452861600. Its totient is φ = 1306960704.

The previous prime is 1379894053. The next prime is 1379894093. The reversal of 1379894057 is 7504989731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1379894057 - 2² = 1379894053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379894051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147794 + ... + 156852.

It is an arithmetic number, because the mean of its divisors is an integer number (181607700).

Almost surely, 2^1379894057 is an apocalyptic number.

It is an amenable number.

1379894057 is a deficient number, since it is larger than the sum of its proper divisors (72967543).

1379894057 is an equidigital number, since it uses as much as digits as its factorization.

1379894057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17095.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 1379894057 is about 37146.9252697986. The cubic root of 1379894057 is about 1113.3077904088.

The spelling of 1379894057 in words is "one billion, three hundred seventy-nine million, eight hundred ninety-four thousand, fifty-seven".