2620791 has 6 divisors (see below), whose sum is σ = 3785600. Its totient is φ = 1747188.

The previous prime is 2620741. The next prime is 2620811. The reversal of 2620791 is 1970262.

It is not a de Polignac number, because 2620791 - 2⁷ = 2620663 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 (2620741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145591 + ... + 145608.

2^2620791 is an apocalyptic number.

2620791 is a deficient number, since it is larger than the sum of its proper divisors (1164809).

2620791 is a wasteful number, since it uses less digits than its factorization.

2620791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291205 (or 291202 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2620791 is about 1618.8857279005. The cubic root of 2620791 is about 137.8724404134.

The spelling of 2620791 in words is "two million, six hundred twenty thousand, seven hundred ninety-one".