5645974 has 4 divisors (see below), whose sum is σ = 8468964. Its totient is φ = 2822986.

The previous prime is 5645957. The next prime is 5646019. The reversal of 5645974 is 4795465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4795465 = 5 ⋅959093.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 1411492 + ... + 1411495.

It is an arithmetic number, because the mean of its divisors is an integer number (2117241).

Almost surely, 2^5645974 is an apocalyptic number.

5645974 is a deficient number, since it is larger than the sum of its proper divisors (2822990).

5645974 is a wasteful number, since it uses less digits than its factorization.

5645974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822989.

The product of its digits is 151200, while the sum is 40.

The square root of 5645974 is about 2376.1258384185. The cubic root of 5645974 is about 178.0654348492.

The spelling of 5645974 in words is "five million, six hundred forty-five thousand, nine hundred seventy-four".