1679032979 has 16 divisors (see below), whose sum is σ = 1847204352. Its totient is φ = 1516788768.

The previous prime is 1679032969. The next prime is 1679033003. The reversal of 1679032979 is 9792309761.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1679032979 - 2⁸ = 1679032723 is a prime.

It is a super-2 number, since 2×1679032979² = 5638303489139228882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1679032979.

It is not an unprimeable number, because it can be changed into a prime (1679032969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108182 + ... + 122724.

It is an arithmetic number, because the mean of its divisors is an integer number (115450272).

Almost surely, 2^1679032979 is an apocalyptic number.

1679032979 is a deficient number, since it is larger than the sum of its proper divisors (168171373).

1679032979 is a wasteful number, since it uses less digits than its factorization.

1679032979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14746.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 1679032979 is about 40976.0049175124. The cubic root of 1679032979 is about 1188.5562556102.

The spelling of 1679032979 in words is "one billion, six hundred seventy-nine million, thirty-two thousand, nine hundred seventy-nine".