2979015321 has 4 divisors (see below), whose sum is σ = 3972020432. Its totient is φ = 1986010212.

The previous prime is 2979015311. The next prime is 2979015341. The reversal of 2979015321 is 1235109792.

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.

It is not a de Polignac number, because 2979015321 - 2¹⁵ = 2978982553 is a prime.

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 2979015321.

It is not an unprimeable number, because it can be changed into a prime (2979015311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496502551 + ... + 496502556.

It is an arithmetic number, because the mean of its divisors is an integer number (993005108).

Almost surely, 2^2979015321 is an apocalyptic number.

It is an amenable number.

2979015321 is a deficient number, since it is larger than the sum of its proper divisors (993005111).

2979015321 is an equidigital number, since it uses as much as digits as its factorization.

2979015321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993005110.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 2979015321 is about 54580.3565488537. The cubic root of 2979015321 is about 1438.8789050927.

The spelling of 2979015321 in words is "two billion, nine hundred seventy-nine million, fifteen thousand, three hundred twenty-one".