7790491 has 4 divisors (see below), whose sum is σ = 8129232. Its totient is φ = 7451752.

The previous prime is 7790477. The next prime is 7790501. The reversal of 7790491 is 1940977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1940977 = 43 ⋅45139.

It is a cyclic number.

It is not a de Polignac number, because 7790491 - 2⁵ = 7790459 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 7790491.

It is not an unprimeable number, because it can be changed into a prime (7790401) 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 3 ways as a sum of consecutive naturals, for example, 169336 + ... + 169381.

It is an arithmetic number, because the mean of its divisors is an integer number (2032308).

Almost surely, 2^7790491 is an apocalyptic number.

7790491 is a deficient number, since it is larger than the sum of its proper divisors (338741).

7790491 is a wasteful number, since it uses less digits than its factorization.

7790491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338740.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 7790491 is about 2791.1451055078. The cubic root of 7790491 is about 198.2386249952.

It can be divided in two parts, 7790 and 491, that added together give a square (8281 = 91²).

The spelling of 7790491 in words is "seven million, seven hundred ninety thousand, four hundred ninety-one".