198076646 has 4 divisors (see below), whose sum is σ = 297114972. Its totient is φ = 99038322.

The previous prime is 198076643. The next prime is 198076657. The reversal of 198076646 is 646670891.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646670891 = 2927 ⋅220933.

It is a self number, because there is not a number n which added to its sum of digits gives 198076646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198076643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49519160 + ... + 49519163.

It is an arithmetic number, because the mean of its divisors is an integer number (74278743).

Almost surely, 2^198076646 is an apocalyptic number.

198076646 is a deficient number, since it is larger than the sum of its proper divisors (99038326).

198076646 is an equidigital number, since it uses as much as digits as its factorization.

198076646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99038325.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 198076646 is about 14073.9705129718. The cubic root of 198076646 is about 582.9228655967.

The spelling of 198076646 in words is "one hundred ninety-eight million, seventy-six thousand, six hundred forty-six".