616791943 has 16 divisors (see below), whose sum is σ = 684979200. Its totient is φ = 552410496.

The previous prime is 616791941. The next prime is 616791949. The reversal of 616791943 is 349197616.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 616791943 - 2¹ = 616791941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616791893 and 616791902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616791941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73846 + ... + 81772.

It is an arithmetic number, because the mean of its divisors is an integer number (42811200).

Almost surely, 2^616791943 is an apocalyptic number.

616791943 is a deficient number, since it is larger than the sum of its proper divisors (68187257).

616791943 is a wasteful number, since it uses less digits than its factorization.

616791943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166.

The product of its digits is 244944, while the sum is 46.

The square root of 616791943 is about 24835.2963139158. The cubic root of 616791943 is about 851.2286467058.

The spelling of 616791943 in words is "six hundred sixteen million, seven hundred ninety-one thousand, nine hundred forty-three".