6616628 has 6 divisors (see below), whose sum is σ = 11579106. Its totient is φ = 3308312.

The previous prime is 6616607. The next prime is 6616637. The reversal of 6616628 is 8266166.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 1444 = 2572^2 + 38^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827075 + ... + 827082.

It is an arithmetic number, because the mean of its divisors is an integer number (1929851).

Almost surely, 2^6616628 is an apocalyptic number.

It is an amenable number.

6616628 is a deficient number, since it is larger than the sum of its proper divisors (4962478).

6616628 is a wasteful number, since it uses less digits than its factorization.

6616628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654161 (or 1654159 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 6616628 is about 2572.2807000792. The cubic root of 6616628 is about 187.7351408421.

The spelling of 6616628 in words is "six million, six hundred sixteen thousand, six hundred twenty-eight".