616369 has 8 divisors (see below), whose sum is σ = 703080. Its totient is φ = 535296.

The previous prime is 616367. The next prime is 616387. The reversal of 616369 is 963616.

It can be written as a sum of positive squares in 4 ways, for example, as 97969 + 518400 = 313^2 + 720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616369 - 2¹ = 616367 is a prime.

It is a super-2 number, since 2×616369² = 759821488322, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616369.

It is not an unprimeable number, because it can be changed into a prime (616361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (87885).

2⁶¹⁶³⁶⁹ is an apocalyptic number.

It is an amenable number.

616369 is a deficient number, since it is larger than the sum of its proper divisors (86711).

616369 is a wasteful number, since it uses less digits than its factorization.

616369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its digits is 5832, while the sum is 31.

The square root of 616369 is about 785.0917143876. The cubic root of 616369 is about 85.1034035690.

The spelling of 616369 in words is "six hundred sixteen thousand, three hundred sixty-nine".