612898560 has 216 divisors, whose sum is σ = 2149462224. Its totient is φ = 161218560.

The previous prime is 612898529. The next prime is 612898567. The reversal of 612898560 is 65898216.

612898560 is a `hidden beast` number, since 6 + 1 + 2 + 89 + 8 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612898567) 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, 955840 + ... + 956480.

It is an arithmetic number, because the mean of its divisors is an integer number (9951214).

Almost surely, 2^612898560 is an apocalyptic number.

612898560 is a gapful number since it is divisible by the number (60) 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 612898560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074731112).

612898560 is an abundant number, since it is smaller than the sum of its proper divisors (1536563664).

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

612898560 is a wasteful number, since it uses less digits than its factorization.

612898560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 612898560 is about 24756.7881600178. The cubic root of 612898560 is about 849.4337913131.

The spelling of 612898560 in words is "six hundred twelve million, eight hundred ninety-eight thousand, five hundred sixty".