2902979021 has 8 divisors (see below), whose sum is σ = 2911411200. Its totient is φ = 2894557680.

The previous prime is 2902979003. The next prime is 2902979029. The reversal of 2902979021 is 1209792092.

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 2902979021 - 2⁶ = 2902978957 is a prime.

It is a super-2 number, since 2×2902979021² = 16854574392732236882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2902979021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2902979029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085516 + ... + 1088186.

It is an arithmetic number, because the mean of its divisors is an integer number (363926400).

Almost surely, 2^2902979021 is an apocalyptic number.

It is an amenable number.

2902979021 is a deficient number, since it is larger than the sum of its proper divisors (8432179).

2902979021 is a wasteful number, since it uses less digits than its factorization.

2902979021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 2902979021 is about 53879.3004872929. The cubic root of 2902979021 is about 1426.5312803211.

The spelling of 2902979021 in words is "two billion, nine hundred two million, nine hundred seventy-nine thousand, twenty-one".