612916216 has 64 divisors (see below), whose sum is σ = 1291217760. Its totient is φ = 270336000.

The previous prime is 612916151. The next prime is 612916277. The reversal of 612916216 is 612619216.

Its product of digits (7776) is a multiple of the sum of its prime divisors (972).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926926 + ... + 927586.

Almost surely, 2^612916216 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 612916216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645608880).

612916216 is an abundant number, since it is smaller than the sum of its proper divisors (678301544).

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

612916216 is a wasteful number, since it uses less digits than its factorization.

612916216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 972 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 612916216 is about 24757.1447465171. The cubic root of 612916216 is about 849.4419478880.

The spelling of 612916216 in words is "six hundred twelve million, nine hundred sixteen thousand, two hundred sixteen".