7998922 has 4 divisors (see below), whose sum is σ = 11998386. Its totient is φ = 3999460.

The previous prime is 7998863. The next prime is 7998937. The reversal of 7998922 is 2298997.

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

It can be written as a sum of positive squares in only one way, i.e., 5377761 + 2621161 = 2319^2 + 1619^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999729 + ... + 1999732.

Almost surely, 2^7998922 is an apocalyptic number.

7998922 is a deficient number, since it is larger than the sum of its proper divisors (3999464).

7998922 is a wasteful number, since it uses less digits than its factorization.

7998922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999463.

The product of its digits is 163296, while the sum is 46.

The square root of 7998922 is about 2828.2365530486. The cubic root of 7998922 is about 199.9910162631.

The spelling of 7998922 in words is "seven million, nine hundred ninety-eight thousand, nine hundred twenty-two".