1979432479 has 8 divisors (see below), whose sum is σ = 2000335040. Its totient is φ = 1958580000.

The previous prime is 1979432461. The next prime is 1979432513. The reversal of 1979432479 is 9742349791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1979432479 - 2²⁷ = 1845214751 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 (1979433479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69769 + ... + 93949.

It is an arithmetic number, because the mean of its divisors is an integer number (250041880).

Almost surely, 2^1979432479 is an apocalyptic number.

1979432479 is a deficient number, since it is larger than the sum of its proper divisors (20902561).

1979432479 is a wasteful number, since it uses less digits than its factorization.

1979432479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041.

The product of its digits is 3429216, while the sum is 55.

The square root of 1979432479 is about 44490.8134225483. The cubic root of 1979432479 is about 1255.5872510775.

The spelling of 1979432479 in words is "one billion, nine hundred seventy-nine million, four hundred thirty-two thousand, four hundred seventy-nine".