616965 has 8 divisors (see below), whose sum is σ = 987168. Its totient is φ = 329040.

The previous prime is 616961. The next prime is 616991. The reversal of 616965 is 569616.

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

It is not a de Polignac number, because 616965 - 2² = 616961 is a prime.

It is a super-2 number, since 2×616965² = 761291622450, which contains 22 as substring.

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

616965 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20551 + ... + 20580.

It is an arithmetic number, because the mean of its divisors is an integer number (123396).

2⁶¹⁶⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

616965 is a deficient number, since it is larger than the sum of its proper divisors (370203).

616965 is a wasteful number, since it uses less digits than its factorization.

616965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41139.

The product of its digits is 9720, while the sum is 33.

The square root of 616965 is about 785.4711961619. The cubic root of 616965 is about 85.1308250697.

The spelling of 616965 in words is "six hundred sixteen thousand, nine hundred sixty-five".