7868398 has 8 divisors (see below), whose sum is σ = 12077208. Its totient is φ = 3842664.

The previous prime is 7868381. The next prime is 7868423. The reversal of 7868398 is 8938687.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

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, 45661 + ... + 45832.

It is an arithmetic number, because the mean of its divisors is an integer number (1509651).

Almost surely, 2^7868398 is an apocalyptic number.

7868398 is a deficient number, since it is larger than the sum of its proper divisors (4208810).

7868398 is a wasteful number, since it uses less digits than its factorization.

7868398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91538.

The product of its digits is 580608, while the sum is 49.

The square root of 7868398 is about 2805.0664876256. The cubic root of 7868398 is about 198.8972475267.

The spelling of 7868398 in words is "seven million, eight hundred sixty-eight thousand, three hundred ninety-eight".