616447198 has 4 divisors (see below), whose sum is σ = 924670800. Its totient is φ = 308223598.

The previous prime is 616447147. The next prime is 616447199. The reversal of 616447198 is 891744616.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616447199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154111798 + ... + 154111801.

It is an arithmetic number, because the mean of its divisors is an integer number (231167700).

Almost surely, 2^616447198 is an apocalyptic number.

616447198 is a deficient number, since it is larger than the sum of its proper divisors (308223602).

616447198 is a wasteful number, since it uses less digits than its factorization.

616447198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308223601.

The product of its digits is 290304, while the sum is 46.

The square root of 616447198 is about 24828.3547179430. The cubic root of 616447198 is about 851.0700240593.

The spelling of 616447198 in words is "six hundred sixteen million, four hundred forty-seven thousand, one hundred ninety-eight".