7822642 has 16 divisors (see below), whose sum is σ = 12448800. Its totient is φ = 3676320.

The previous prime is 7822627. The next prime is 7822657. The reversal of 7822642 is 2462287.

It is an interprime number because it is at equal distance from previous prime (7822627) and next prime (7822657).

It is a super-2 number, since 2×7822642² = 122387455720328, which contains 22 as substring.

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, 4542 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^7822642 is an apocalyptic number.

7822642 is a deficient number, since it is larger than the sum of its proper divisors (4626158).

7822642 is a wasteful number, since it uses less digits than its factorization.

7822642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its digits is 10752, while the sum is 31.

The square root of 7822642 is about 2796.8986395649. The cubic root of 7822642 is about 198.5109579486.

It can be divided in two parts, 7822 and 642, that added together give a square (8464 = 92²).

The spelling of 7822642 in words is "seven million, eight hundred twenty-two thousand, six hundred forty-two".