7899842 has 8 divisors (see below), whose sum is σ = 12000000. Its totient is φ = 3899844.

The previous prime is 7899821. The next prime is 7899851. The reversal of 7899842 is 2489987.

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, 24842 + ... + 25157.

It is an arithmetic number, because the mean of its divisors is an integer number (1500000).

Almost surely, 2^7899842 is an apocalyptic number.

7899842 is a deficient number, since it is larger than the sum of its proper divisors (4100158).

7899842 is a wasteful number, since it uses less digits than its factorization.

7899842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50080.

The product of its digits is 290304, while the sum is 47.

The square root of 7899842 is about 2810.6657574319. The cubic root of 7899842 is about 199.1618423657.

The spelling of 7899842 in words is "seven million, eight hundred ninety-nine thousand, eight hundred forty-two".