7938798 has 16 divisors (see below), whose sum is σ = 18145920. Its totient is φ = 2268216.

The previous prime is 7938787. The next prime is 7938803. The reversal of 7938798 is 8978397.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7938798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94468 + ... + 94551.

It is an arithmetic number, because the mean of its divisors is an integer number (1134120).

Almost surely, 2^7938798 is an apocalyptic number.

7938798 is an abundant number, since it is smaller than the sum of its proper divisors (10207122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7938798 is a wasteful number, since it uses less digits than its factorization.

7938798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189031.

The product of its digits is 762048, while the sum is 51.

The square root of 7938798 is about 2817.5872657293. The cubic root of 7938798 is about 199.4886771923.

It can be divided in two parts, 793 and 8798, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 7938798 in words is "seven million, nine hundred thirty-eight thousand, seven hundred ninety-eight".