7663198 has 4 divisors (see below), whose sum is σ = 11494800. Its totient is φ = 3831598.

The previous prime is 7663193. The next prime is 7663207. The reversal of 7663198 is 8913667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8913667 = 7 ⋅1273381.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7663198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915798 + ... + 1915801.

It is an arithmetic number, because the mean of its divisors is an integer number (2873700).

Almost surely, 2^7663198 is an apocalyptic number.

7663198 is a deficient number, since it is larger than the sum of its proper divisors (3831602).

7663198 is a wasteful number, since it uses less digits than its factorization.

7663198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831601.

The product of its digits is 54432, while the sum is 40.

The square root of 7663198 is about 2768.2481825154. The cubic root of 7663198 is about 197.1529813966.

It can be divided in two parts, 76631 and 98, that added together give a square (76729 = 277²).

The spelling of 7663198 in words is "seven million, six hundred sixty-three thousand, one hundred ninety-eight".