616901 has 4 divisors (see below), whose sum is σ = 633612. Its totient is φ = 600192.

The previous prime is 616897. The next prime is 616909. The reversal of 616901 is 109616.

616901 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 564001 + 52900 = 751^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 616901 - 2² = 616897 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616909) 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, 8300 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (158403).

2⁶¹⁶⁹⁰¹ is an apocalyptic number.

It is an amenable number.

616901 is a deficient number, since it is larger than the sum of its proper divisors (16711).

616901 is a wasteful number, since it uses less digits than its factorization.

616901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 616901 is about 785.4304552282. The cubic root of 616901 is about 85.1278813256.

The spelling of 616901 in words is "six hundred sixteen thousand, nine hundred one".