2620913 has 2 divisors, whose sum is σ = 2620914. Its totient is φ = 2620912.

The previous prime is 2620909. The next prime is 2620921. The reversal of 2620913 is 3190262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2024929 + 595984 = 1423^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2620913 - 2² = 2620909 is a prime.

It is not a weakly prime, because it can be changed into another prime (2620313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310456 + 1310457.

It is an arithmetic number, because the mean of its divisors is an integer number (1310457).

2^2620913 is an apocalyptic number.

It is an amenable number.

2620913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620913 is an equidigital number, since it uses as much as digits as its factorization.

2620913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2620913 is about 1618.9234077003. The cubic root of 2620913 is about 137.8745797391.

The spelling of 2620913 in words is "two million, six hundred twenty thousand, nine hundred thirteen".