616487916 has 48 divisors (see below), whose sum is σ = 1623363840. Its totient is φ = 180371520.

The previous prime is 616487869. The next prime is 616487939. The reversal of 616487916 is 619784616.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76696 + ... + 84351.

It is an arithmetic number, because the mean of its divisors is an integer number (33820080).

Almost surely, 2^616487916 is an apocalyptic number.

616487916 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

616487916 is an abundant number, since it is smaller than the sum of its proper divisors (1006875924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616487916 is a wasteful number, since it uses less digits than its factorization.

616487916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161094 (or 161092 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 616487916 is about 24829.1746942986. The cubic root of 616487916 is about 851.0887621369.

The spelling of 616487916 in words is "six hundred sixteen million, four hundred eighty-seven thousand, nine hundred sixteen".