616498987 has 12 divisors (see below), whose sum is σ = 668316000. Its totient is φ = 568440288.

The previous prime is 616498979. The next prime is 616498997. The reversal of 616498987 is 789894616.

It is not a de Polignac number, because 616498987 - 2³ = 616498979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616498937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222889 + ... + 225637.

It is an arithmetic number, because the mean of its divisors is an integer number (55693000).

Almost surely, 2^616498987 is an apocalyptic number.

616498987 is a deficient number, since it is larger than the sum of its proper divisors (51817013).

616498987 is a wasteful number, since it uses less digits than its factorization.

616498987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102 (or 4089 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The square root of 616498987 is about 24829.3976366725. The cubic root of 616498987 is about 851.0938567744.

The spelling of 616498987 in words is "six hundred sixteen million, four hundred ninety-eight thousand, nine hundred eighty-seven".