6616738 has 4 divisors (see below), whose sum is σ = 9925110. Its totient is φ = 3308368.

The previous prime is 6616717. The next prime is 6616751. The reversal of 6616738 is 8376166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 1014049 = 2367^2 + 1007^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6616697 and 6616706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1654183 + ... + 1654186.

Almost surely, 2^6616738 is an apocalyptic number.

6616738 is a deficient number, since it is larger than the sum of its proper divisors (3308372).

6616738 is a wasteful number, since it uses less digits than its factorization.

6616738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308371.

The product of its digits is 36288, while the sum is 37.

The square root of 6616738 is about 2572.3020817937. The cubic root of 6616738 is about 187.7361811883.

The spelling of 6616738 in words is "six million, six hundred sixteen thousand, seven hundred thirty-eight".