616383 has 16 divisors (see below), whose sum is σ = 939360. Its totient is φ = 399168.

The previous prime is 616367. The next prime is 616387. The reversal of 616383 is 383616.

It is not a de Polignac number, because 616383 - 2⁴ = 616367 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (58710).

2⁶¹⁶³⁸³ is an apocalyptic number.

616383 is a deficient number, since it is larger than the sum of its proper divisors (322977).

616383 is a wasteful number, since it uses less digits than its factorization.

616383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 657 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 616383 is about 785.1006304927. The cubic root of 616383 is about 85.1040479009.

Adding to 616383 its reverse (383616), we get a palindrome (999999).

It can be divided in two parts, 616 and 383, that added together give a palindrome (999).

The spelling of 616383 in words is "six hundred sixteen thousand, three hundred eighty-three".