2490797 has 4 divisors (see below), whose sum is σ = 2509116. Its totient is φ = 2472480.

The previous prime is 2490769. The next prime is 2490809. The reversal of 2490797 is 7970942.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 491401 = 1414^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 2490797 - 2¹⁴ = 2474413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2490797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490707) 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, 8954 + ... + 9227.

It is an arithmetic number, because the mean of its divisors is an integer number (627279).

2^2490797 is an apocalyptic number.

It is an amenable number.

2490797 is a deficient number, since it is larger than the sum of its proper divisors (18319).

2490797 is a wasteful number, since it uses less digits than its factorization.

2490797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18318.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 2490797 is about 1578.2259027148. The cubic root of 2490797 is about 135.5541374880.

The spelling of 2490797 in words is "two million, four hundred ninety thousand, seven hundred ninety-seven".