2920081 has 4 divisors (see below), whose sum is σ = 2924272. Its totient is φ = 2915892.

The previous prime is 2920079. The next prime is 2920109. The reversal of 2920081 is 1800292.

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 a cyclic number.

It is not a de Polignac number, because 2920081 - 2¹ = 2920079 is a prime.

It is a super-2 number, since 2×2920081² = 17053746093122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920031) 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, 771 + ... + 2536.

It is an arithmetic number, because the mean of its divisors is an integer number (731068).

2^2920081 is an apocalyptic number.

It is an amenable number.

2920081 is a deficient number, since it is larger than the sum of its proper divisors (4191).

2920081 is an equidigital number, since it uses as much as digits as its factorization.

2920081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2920081 is about 1708.8244497315. The cubic root of 2920081 is about 142.9327115899.

The spelling of 2920081 in words is "two million, nine hundred twenty thousand, eighty-one".