1204979679 has 16 divisors (see below), whose sum is σ = 1789295200. Its totient is φ = 801456768.

The previous prime is 1204979647. The next prime is 1204979689. The reversal of 1204979679 is 9769794021.

It is not a de Polignac number, because 1204979679 - 2⁵ = 1204979647 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 (1204979689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39844 + ... + 63225.

It is an arithmetic number, because the mean of its divisors is an integer number (111830950).

Almost surely, 2^1204979679 is an apocalyptic number.

1204979679 is a deficient number, since it is larger than the sum of its proper divisors (584315521).

1204979679 is a wasteful number, since it uses less digits than its factorization.

1204979679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103511 (or 103505 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 1204979679 is about 34712.8172149712. The cubic root of 1204979679 is about 1064.1264568710.

The spelling of 1204979679 in words is "one billion, two hundred four million, nine hundred seventy-nine thousand, six hundred seventy-nine".