611604312 has 64 divisors (see below), whose sum is σ = 1699522560. Its totient is φ = 181833600.

The previous prime is 611604299. The next prime is 611604313. The reversal of 611604312 is 213406116.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611604313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7864 + ... + 35847.

It is an arithmetic number, because the mean of its divisors is an integer number (26555040).

Almost surely, 2^611604312 is an apocalyptic number.

It is an amenable number.

611604312 is an abundant number, since it is smaller than the sum of its proper divisors (1087918248).

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

611604312 is a wasteful number, since it uses less digits than its factorization.

611604312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43784 (or 43780 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 611604312 is about 24730.6350909151. The cubic root of 611604312 is about 848.8354580746.

The spelling of 611604312 in words is "six hundred eleven million, six hundred four thousand, three hundred twelve".