5605994 has 4 divisors (see below), whose sum is σ = 8408994. Its totient is φ = 2802996.

The previous prime is 5605991. The next prime is 5606011. The reversal of 5605994 is 4995065.

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., 5593225 + 12769 = 2365^2 + 113^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5605991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401497 + ... + 1401500.

Almost surely, 2^5605994 is an apocalyptic number.

5605994 is a deficient number, since it is larger than the sum of its proper divisors (2803000).

5605994 is a wasteful number, since it uses less digits than its factorization.

5605994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802999.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5605994 is about 2367.6980381797. The cubic root of 5605994 is about 177.6441360493.

The spelling of 5605994 in words is "five million, six hundred five thousand, nine hundred ninety-four".