616888494 has 64 divisors (see below), whose sum is σ = 1414183680. Its totient is φ = 199182240.

The previous prime is 616888477. The next prime is 616888511. The reversal of 616888494 is 494888616.

616888494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616888477) and next prime (616888511).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 616888494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564889 + ... + 565979.

It is an arithmetic number, because the mean of its divisors is an integer number (22096620).

Almost surely, 2^616888494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616888494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707091840).

616888494 is an abundant number, since it is smaller than the sum of its proper divisors (797295186).

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

616888494 is a wasteful number, since it uses less digits than its factorization.

616888494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1416 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 616888494 is about 24837.2400640651. The cubic root of 616888494 is about 851.2730607582.

The spelling of 616888494 in words is "six hundred sixteen million, eight hundred eighty-eight thousand, four hundred ninety-four".