7899722 has 8 divisors (see below), whose sum is σ = 12169956. Its totient is φ = 3843072.

The previous prime is 7899719. The next prime is 7899733. The reversal of 7899722 is 2279987.

It can be written as a sum of positive squares in 2 ways, for example, as 7123561 + 776161 = 2669^2 + 881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53303 + ... + 53450.

Almost surely, 2^7899722 is an apocalyptic number.

7899722 is a deficient number, since it is larger than the sum of its proper divisors (4270234).

7899722 is a wasteful number, since it uses less digits than its factorization.

7899722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106792.

The product of its digits is 127008, while the sum is 44.

The square root of 7899722 is about 2810.6444100953. The cubic root of 7899722 is about 199.1608339260.

The spelling of 7899722 in words is "seven million, eight hundred ninety-nine thousand, seven hundred twenty-two".