616723604 has 48 divisors (see below), whose sum is σ = 1270684800. Its totient is φ = 261777600.

The previous prime is 616723589. The next prime is 616723607. The reversal of 616723604 is 406327616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616723607) 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, 144704 + ... + 148904.

It is an arithmetic number, because the mean of its divisors is an integer number (26472600).

Almost surely, 2^616723604 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 616723604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635342400).

616723604 is an abundant number, since it is smaller than the sum of its proper divisors (653961196).

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

616723604 is a wasteful number, since it uses less digits than its factorization.

616723604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333 (or 4317 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 616723604 is about 24833.9204315388. The cubic root of 616723604 is about 851.1972075451.

The spelling of 616723604 in words is "six hundred sixteen million, seven hundred twenty-three thousand, six hundred four".