6694642 has 16 divisors (see below), whose sum is σ = 10328472. Its totient is φ = 3253120.

The previous prime is 6694561. The next prime is 6694643. The reversal of 6694642 is 2464966.

It can be written as a sum of positive squares in 4 ways, for example, as 6007401 + 687241 = 2451^2 + 829^2 .

It is not an unprimeable number, because it can be changed into a prime (6694643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14292 + ... + 14752.

Almost surely, 2^6694642 is an apocalyptic number.

6694642 is a deficient number, since it is larger than the sum of its proper divisors (3633830).

6694642 is a wasteful number, since it uses less digits than its factorization.

6694642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 62208, while the sum is 37.

The square root of 6694642 is about 2587.4006261111. The cubic root of 6694642 is about 188.4700963617.

The spelling of 6694642 in words is "six million, six hundred ninety-four thousand, six hundred forty-two".