616285903 has 4 divisors (see below), whose sum is σ = 620422200. Its totient is φ = 612149608.

The previous prime is 616285889. The next prime is 616285909. The reversal of 616285903 is 309582616.

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

It is a cyclic number.

It is not a de Polignac number, because 616285903 - 2⁵ = 616285871 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616285909) 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, 2067925 + ... + 2068222.

It is an arithmetic number, because the mean of its divisors is an integer number (155105550).

Almost surely, 2^616285903 is an apocalyptic number.

616285903 is a deficient number, since it is larger than the sum of its proper divisors (4136297).

616285903 is a wasteful number, since it uses less digits than its factorization.

616285903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136296.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 616285903 is about 24825.1063039013. The cubic root of 616285903 is about 850.9957893618.

The spelling of 616285903 in words is "six hundred sixteen million, two hundred eighty-five thousand, nine hundred three".