1457979799 has 4 divisors (see below), whose sum is σ = 1461952864. Its totient is φ = 1454006736.

The previous prime is 1457979793. The next prime is 1457979811. The reversal of 1457979799 is 9979797541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1457979799 - 2³ = 1457979791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457979791) 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, 1985982 + ... + 1986715.

It is an arithmetic number, because the mean of its divisors is an integer number (365488216).

Almost surely, 2^1457979799 is an apocalyptic number.

1457979799 is a deficient number, since it is larger than the sum of its proper divisors (3973065).

1457979799 is an equidigital number, since it uses as much as digits as its factorization.

1457979799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973064.

The product of its digits is 45008460, while the sum is 67.

The square root of 1457979799 is about 38183.5016597483. The cubic root of 1457979799 is about 1133.9237079131.

The spelling of 1457979799 in words is "one billion, four hundred fifty-seven million, nine hundred seventy-nine thousand, seven hundred ninety-nine".