5665742 has 4 divisors (see below), whose sum is σ = 8498616. Its totient is φ = 2832870.

The previous prime is 5665733. The next prime is 5665747. The reversal of 5665742 is 2475665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2475665 = 5 ⋅495133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1416434 + ... + 1416437.

It is an arithmetic number, because the mean of its divisors is an integer number (2124654).

Almost surely, 2^5665742 is an apocalyptic number.

5665742 is a deficient number, since it is larger than the sum of its proper divisors (2832874).

5665742 is a wasteful number, since it uses less digits than its factorization.

5665742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832873.

The product of its digits is 50400, while the sum is 35.

The square root of 5665742 is about 2380.2819160763. The cubic root of 5665742 is about 178.2730103328.

The spelling of 5665742 in words is "five million, six hundred sixty-five thousand, seven hundred forty-two".