616678212 has 72 divisors (see below), whose sum is σ = 1553456800. Its totient is φ = 189872640.

The previous prime is 616678189. The next prime is 616678261. The reversal of 616678212 is 212876616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382464 + ... + 384072.

Almost surely, 2^616678212 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 616678212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776728400).

616678212 is an abundant number, since it is smaller than the sum of its proper divisors (936778588).

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

616678212 is a wasteful number, since it uses less digits than its factorization.

616678212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1674 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 616678212 is about 24833.0065034421. The cubic root of 616678212 is about 851.1763238022.

The spelling of 616678212 in words is "six hundred sixteen million, six hundred seventy-eight thousand, two hundred twelve".