616947912 has 96 divisors (see below), whose sum is σ = 1920434880. Its totient is φ = 175271040.

The previous prime is 616947899. The next prime is 616947913. The reversal of 616947912 is 219749616.

616947912 is a `hidden beast` number, since 6 + 169 + 479 + 12 = 666.

It is a super-2 number, since 2×616947912² = 761249452242319488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (616947913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87843 + ... + 94605.

It is an arithmetic number, because the mean of its divisors is an integer number (20004530).

Almost surely, 2^616947912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616947912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960217440).

616947912 is an abundant number, since it is smaller than the sum of its proper divisors (1303486968).

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

616947912 is a wasteful number, since it uses less digits than its factorization.

616947912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963 (or 6956 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 616947912 is about 24838.4361826585. The cubic root of 616947912 is about 851.3003910993.

The spelling of 616947912 in words is "six hundred sixteen million, nine hundred forty-seven thousand, nine hundred twelve".