6617642 has 8 divisors (see below), whose sum is σ = 9970500. Its totient is φ = 3294144.

The previous prime is 6617627. The next prime is 6617693. The reversal of 6617642 is 2467166.

It can be written as a sum of positive squares in 2 ways, for example, as 4541161 + 2076481 = 2131^2 + 1441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6617599 and 6617608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6767 + ... + 7682.

Almost surely, 2^6617642 is an apocalyptic number.

6617642 is a deficient number, since it is larger than the sum of its proper divisors (3352858).

6617642 is a wasteful number, since it uses less digits than its factorization.

6617642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14680.

The product of its digits is 12096, while the sum is 32.

The square root of 6617642 is about 2572.4777938789. The cubic root of 6617642 is about 187.7447305057.

The spelling of 6617642 in words is "six million, six hundred seventeen thousand, six hundred forty-two".