616959036 has 144 divisors (see below), whose sum is σ = 1712430720. Its totient is φ = 186531840.

The previous prime is 616959023. The next prime is 616959037. The reversal of 616959036 is 630959616.

It is a junction number, because it is equal to n+sod(n) for n = 616958982 and 616959000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616959037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2559876 + ... + 2560116.

It is an arithmetic number, because the mean of its divisors is an integer number (11891880).

Almost surely, 2^616959036 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 616959036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856215360).

616959036 is an abundant number, since it is smaller than the sum of its proper divisors (1095471684).

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

616959036 is a wasteful number, since it uses less digits than its factorization.

616959036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 616959036 is about 24838.6601087901. The cubic root of 616959036 is about 851.3055075812.

The spelling of 616959036 in words is "six hundred sixteen million, nine hundred fifty-nine thousand, thirty-six".