6616534 has 4 divisors (see below), whose sum is σ = 9924804. Its totient is φ = 3308266.

The previous prime is 6616531. The next prime is 6616537. The reversal of 6616534 is 4356166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4356166 = 2 ⋅2178083.

It is an interprime number because it is at equal distance from previous prime (6616531) and next prime (6616537).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6616496 and 6616505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1654132 + ... + 1654135.

It is an arithmetic number, because the mean of its divisors is an integer number (2481201).

Almost surely, 2^6616534 is an apocalyptic number.

6616534 is a deficient number, since it is larger than the sum of its proper divisors (3308270).

6616534 is a wasteful number, since it uses less digits than its factorization.

6616534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308269.

The product of its digits is 12960, while the sum is 31.

The square root of 6616534 is about 2572.2624282915. The cubic root of 6616534 is about 187.7342518099.

The spelling of 6616534 in words is "six million, six hundred sixteen thousand, five hundred thirty-four".