2879889621 has 16 divisors (see below), whose sum is σ = 4443955200. Its totient is φ = 1624819248.

The previous prime is 2879889601. The next prime is 2879889707. The reversal of 2879889621 is 1269889782.

It is not a de Polignac number, because 2879889621 - 2⁶ = 2879889557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879889601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866301 + ... + 869618.

It is an arithmetic number, because the mean of its divisors is an integer number (277747200).

Almost surely, 2^2879889621 is an apocalyptic number.

2879889621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2879889621 is a deficient number, since it is larger than the sum of its proper divisors (1564065579).

2879889621 is a wasteful number, since it uses less digits than its factorization.

2879889621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736008.

The product of its digits is 6967296, while the sum is 60.

The square root of 2879889621 is about 53664.6030545275. The cubic root of 2879889621 is about 1422.7391453450.

The spelling of 2879889621 in words is "two billion, eight hundred seventy-nine million, eight hundred eighty-nine thousand, six hundred twenty-one".