5717639 has 4 divisors (see below), whose sum is σ = 5966256. Its totient is φ = 5469024.

The previous prime is 5717629. The next prime is 5717641. The reversal of 5717639 is 9367175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5717639 - 2⁴ = 5717623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5717629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124274 + ... + 124319.

It is an arithmetic number, because the mean of its divisors is an integer number (1491564).

Almost surely, 2^5717639 is an apocalyptic number.

5717639 is a deficient number, since it is larger than the sum of its proper divisors (248617).

5717639 is a wasteful number, since it uses less digits than its factorization.

5717639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248616.

The product of its digits is 39690, while the sum is 38.

The square root of 5717639 is about 2391.1585058293. The cubic root of 5717639 is about 178.8156711771.

The spelling of 5717639 in words is "five million, seven hundred seventeen thousand, six hundred thirty-nine".