616304473 has 4 divisors (see below), whose sum is σ = 616867380. Its totient is φ = 615741568.

The previous prime is 616304443. The next prime is 616304477. The reversal of 616304473 is 374403616.

616304473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263315529 + 352988944 = 16227^2 + 18788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616304473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616304477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279808 + ... + 282001.

It is an arithmetic number, because the mean of its divisors is an integer number (154216845).

Almost surely, 2^616304473 is an apocalyptic number.

It is an amenable number.

616304473 is a deficient number, since it is larger than the sum of its proper divisors (562907).

616304473 is a wasteful number, since it uses less digits than its factorization.

616304473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562906.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 616304473 is about 24825.4803176092. The cubic root of 616304473 is about 851.0043367113.

The spelling of 616304473 in words is "six hundred sixteen million, three hundred four thousand, four hundred seventy-three".