1079397557 has 4 divisors (see below), whose sum is σ = 1233597216. Its totient is φ = 925197900.

The previous prime is 1079397551. The next prime is 1079397563. The reversal of 1079397557 is 7557939701.

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 an interprime number because it is at equal distance from previous prime (1079397551) and next prime (1079397563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1079397557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1079397499 and 1079397508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079397551) 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, 77099819 + ... + 77099832.

It is an arithmetic number, because the mean of its divisors is an integer number (308399304).

Almost surely, 2^1079397557 is an apocalyptic number.

It is an amenable number.

1079397557 is a deficient number, since it is larger than the sum of its proper divisors (154199659).

1079397557 is an equidigital number, since it uses as much as digits as its factorization.

1079397557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154199658.

The product of its (nonzero) digits is 2083725, while the sum is 53.

The square root of 1079397557 is about 32854.1862933782. The cubic root of 1079397557 is about 1025.7947615900.

The spelling of 1079397557 in words is "one billion, seventy-nine million, three hundred ninety-seven thousand, five hundred fifty-seven".