2912021 has 12 divisors (see below), whose sum is σ = 3441888. Its totient is φ = 2455992.

The previous prime is 2912009. The next prime is 2912023. The reversal of 2912021 is 1202192.

2912021 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2912021 - 2¹⁰ = 2910997 is a prime.

It is a Duffinian number.

2912021 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2840 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (286824).

2^2912021 is an apocalyptic number.

It is an amenable number.

2912021 is a deficient number, since it is larger than the sum of its proper divisors (529867).

2912021 is an equidigital number, since it uses as much as digits as its factorization.

2912021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2912021 is about 1706.4644736999. The cubic root of 2912021 is about 142.8010829086.

The spelling of 2912021 in words is "two million, nine hundred twelve thousand, twenty-one".