2622457 has 4 divisors (see below), whose sum is σ = 2625700. Its totient is φ = 2619216.

The previous prime is 2622443. The next prime is 2622461. The reversal of 2622457 is 7542262.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 942841 + 1679616 = 971^2 + 1296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2622457 - 2¹⁹ = 2098169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2622407) 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, 703 + ... + 2395.

It is an arithmetic number, because the mean of its divisors is an integer number (656425).

2^2622457 is an apocalyptic number.

It is an amenable number.

2622457 is a deficient number, since it is larger than the sum of its proper divisors (3243).

2622457 is a wasteful number, since it uses less digits than its factorization.

2622457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242.

The product of its digits is 6720, while the sum is 28.

The square root of 2622457 is about 1619.4001976040. The cubic root of 2622457 is about 137.9016487493.

The spelling of 2622457 in words is "two million, six hundred twenty-two thousand, four hundred fifty-seven".