1479930657 has 4 divisors (see below), whose sum is σ = 1973240880. Its totient is φ = 986620436.

The previous prime is 1479930643. The next prime is 1479930659. The reversal of 1479930657 is 7560399741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7560399741 = 3 ⋅2520133247.

It is a cyclic number.

It is not a de Polignac number, because 1479930657 - 2¹² = 1479926561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1479930659) 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, 246655107 + ... + 246655112.

It is an arithmetic number, because the mean of its divisors is an integer number (493310220).

Almost surely, 2^1479930657 is an apocalyptic number.

It is an amenable number.

1479930657 is a deficient number, since it is larger than the sum of its proper divisors (493310223).

1479930657 is an equidigital number, since it uses as much as digits as its factorization.

1479930657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493310222.

The product of its (nonzero) digits is 1428840, while the sum is 51.

The square root of 1479930657 is about 38469.8668700582. The cubic root of 1479930657 is about 1139.5860446864.

The spelling of 1479930657 in words is "one billion, four hundred seventy-nine million, nine hundred thirty thousand, six hundred fifty-seven".