616736 has 12 divisors (see below), whose sum is σ = 1214262. Its totient is φ = 308352.

The previous prime is 616729. The next prime is 616741. The reversal of 616736 is 637616.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 126736 = 700^2 + 356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 616699 and 616708.

It is an unprimeable number.

616736 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9605 + ... + 9668.

2⁶¹⁶⁷³⁶ is an apocalyptic number.

It is an amenable number.

616736 is a deficient number, since it is larger than the sum of its proper divisors (597526).

616736 is a wasteful number, since it uses less digits than its factorization.

616736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19283 (or 19275 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 616736 is about 785.3254102600. The cubic root of 616736 is about 85.1202910462.

The spelling of 616736 in words is "six hundred sixteen thousand, seven hundred thirty-six".