617481612 has 36 divisors (see below), whose sum is σ = 1702753416. Its totient is φ = 187115520.

The previous prime is 617481577. The next prime is 617481619. The reversal of 617481612 is 216184716.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (617481619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779253 + ... + 780044.

It is an arithmetic number, because the mean of its divisors is an integer number (47298706).

Almost surely, 2^617481612 is an apocalyptic number.

It is an amenable number.

617481612 is an abundant number, since it is smaller than the sum of its proper divisors (1085271804).

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

617481612 is a wasteful number, since it uses less digits than its factorization.

617481612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559318 (or 1559313 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 617481612 is about 24849.1772902042. The cubic root of 617481612 is about 851.5457970522.

The spelling of 617481612 in words is "six hundred seventeen million, four hundred eighty-one thousand, six hundred twelve".