7898722 has 12 divisors (see below), whose sum is σ = 12830130. Its totient is φ = 3645408.

The previous prime is 7898687. The next prime is 7898731. The reversal of 7898722 is 2278987.

It can be written as a sum of positive squares in 3 ways, for example, as 2277081 + 5621641 = 1509^2 + 2371^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11347 + ... + 12022.

Almost surely, 2^7898722 is an apocalyptic number.

7898722 is a deficient number, since it is larger than the sum of its proper divisors (4931408).

7898722 is a wasteful number, since it uses less digits than its factorization.

7898722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23397 (or 23384 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 7898722 is about 2810.4665093183. The cubic root of 7898722 is about 199.1524298649.

The spelling of 7898722 in words is "seven million, eight hundred ninety-eight thousand, seven hundred twenty-two".