612987936 has 144 divisors (see below), whose sum is σ = 1788145632. Its totient is φ = 183715840.

The previous prime is 612987931. The next prime is 612987953. The reversal of 612987936 is 639789216.

It is not an unprimeable number, because it can be changed into a prime (612987931) 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, 1312375 + ... + 1312841.

It is an arithmetic number, because the mean of its divisors is an integer number (12417678).

Almost surely, 2^612987936 is an apocalyptic number.

612987936 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612987936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894072816).

612987936 is an abundant number, since it is smaller than the sum of its proper divisors (1175157696).

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

612987936 is a wasteful number, since it uses less digits than its factorization.

612987936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 596 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 612987936 is about 24758.5931748959. The cubic root of 612987936 is about 849.4750788983.

The spelling of 612987936 in words is "six hundred twelve million, nine hundred eighty-seven thousand, nine hundred thirty-six".