7820494 has 16 divisors (see below), whose sum is σ = 13211136. Its totient is φ = 3439800.

The previous prime is 7820479. The next prime is 7820507. The reversal of 7820494 is 4940287.

It is a happy number.

It is a super-2 number, since 2×7820494² = 122320252808072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5052 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (825696).

Almost surely, 2^7820494 is an apocalyptic number.

7820494 is a deficient number, since it is larger than the sum of its proper divisors (5390642).

7820494 is a wasteful number, since it uses less digits than its factorization.

7820494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11511.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 7820494 is about 2796.5146164467. The cubic root of 7820494 is about 198.4927867403.

The spelling of 7820494 in words is "seven million, eight hundred twenty thousand, four hundred ninety-four".