2690563 has 4 divisors (see below), whose sum is σ = 2807568. Its totient is φ = 2573560.

The previous prime is 2690557. The next prime is 2690579. The reversal of 2690563 is 3650962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2690563 - 2⁵ = 2690531 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2690593) 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, 58468 + ... + 58513.

It is an arithmetic number, because the mean of its divisors is an integer number (701892).

2^2690563 is an apocalyptic number.

2690563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2690563 is a deficient number, since it is larger than the sum of its proper divisors (117005).

2690563 is a wasteful number, since it uses less digits than its factorization.

2690563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117004.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2690563 is about 1640.2935712853. The cubic root of 2690563 is about 139.0852435048.

The spelling of 2690563 in words is "two million, six hundred ninety thousand, five hundred sixty-three".