7798198 has 8 divisors (see below), whose sum is σ = 11730960. Its totient is φ = 3887880.

The previous prime is 7798171. The next prime is 7798199. The reversal of 7798198 is 8918977.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (1466370).

Almost surely, 2^7798198 is an apocalyptic number.

7798198 is a deficient number, since it is larger than the sum of its proper divisors (3932762).

7798198 is a wasteful number, since it uses less digits than its factorization.

7798198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222.

The product of its digits is 254016, while the sum is 49.

The square root of 7798198 is about 2792.5253803681. The cubic root of 7798198 is about 198.3039748147.

The spelling of 7798198 in words is "seven million, seven hundred ninety-eight thousand, one hundred ninety-eight".