2920641 has 4 divisors (see below), whose sum is σ = 3894192. Its totient is φ = 1947092.

The previous prime is 2920637. The next prime is 2920649. The reversal of 2920641 is 1460292.

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 2920641 - 2² = 2920637 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2920649) 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, 486771 + ... + 486776.

It is an arithmetic number, because the mean of its divisors is an integer number (973548).

2^2920641 is an apocalyptic number.

It is an amenable number.

2920641 is a deficient number, since it is larger than the sum of its proper divisors (973551).

2920641 is an equidigital number, since it uses as much as digits as its factorization.

2920641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973550.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2920641 is about 1708.9882972098. The cubic root of 2920641 is about 142.9418480034.

The spelling of 2920641 in words is "two million, nine hundred twenty thousand, six hundred forty-one".