6616493 has 4 divisors (see below), whose sum is σ = 7125468. Its totient is φ = 6107520.

The previous prime is 6616483. The next prime is 6616499. The reversal of 6616493 is 3946166.

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 1408969 + 5207524 = 1187^2 + 2282^2 .

It is a cyclic number.

It is not a de Polignac number, because 6616493 - 2¹⁴ = 6600109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616499) 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, 254468 + ... + 254493.

It is an arithmetic number, because the mean of its divisors is an integer number (1781367).

Almost surely, 2^6616493 is an apocalyptic number.

It is an amenable number.

6616493 is a deficient number, since it is larger than the sum of its proper divisors (508975).

6616493 is a wasteful number, since it uses less digits than its factorization.

6616493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508974.

The product of its digits is 23328, while the sum is 35.

The square root of 6616493 is about 2572.2544586413. The cubic root of 6616493 is about 187.7338640378.

The spelling of 6616493 in words is "six million, six hundred sixteen thousand, four hundred ninety-three".