616487 has 4 divisors (see below), whose sum is σ = 618096. Its totient is φ = 614880.

The previous prime is 616481. The next prime is 616489. The reversal of 616487 is 784616.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 616487 - 2¹⁶ = 550951 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 616487.

It is not an unprimeable number, because it can be changed into a prime (616481) 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, 143 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (154524).

2⁶¹⁶⁴⁸⁷ is an apocalyptic number.

616487 is a deficient number, since it is larger than the sum of its proper divisors (1609).

616487 is an equidigital number, since it uses as much as digits as its factorization.

616487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its digits is 8064, while the sum is 32.

The square root of 616487 is about 785.1668612467. The cubic root of 616487 is about 85.1088340611.

It can be divided in two parts, 616 and 487, that multiplied together give a palindrome (299992).

The spelling of 616487 in words is "six hundred sixteen thousand, four hundred eighty-seven".