2920999 has 4 divisors (see below), whose sum is σ = 2964664. Its totient is φ = 2877336.

The previous prime is 2920987. The next prime is 2921027. The reversal of 2920999 is 9990292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2920999 - 2⁷ = 2920871 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 (2920969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21732 + ... + 21865.

It is an arithmetic number, because the mean of its divisors is an integer number (741166).

2^2920999 is an apocalyptic number.

2920999 is a deficient number, since it is larger than the sum of its proper divisors (43665).

2920999 is an equidigital number, since it uses as much as digits as its factorization.

2920999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43664.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 2920999 is about 1709.0930343314. The cubic root of 2920999 is about 142.9476881701.

The spelling of 2920999 in words is "two million, nine hundred twenty thousand, nine hundred ninety-nine".