5660389 has 4 divisors (see below), whose sum is σ = 6469024. Its totient is φ = 4851756.

The previous prime is 5660381. The next prime is 5660393. The reversal of 5660389 is 9830665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5660389 - 2³ = 5660381 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 (5660381) 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, 404307 + ... + 404320.

It is an arithmetic number, because the mean of its divisors is an integer number (1617256).

Almost surely, 2^5660389 is an apocalyptic number.

It is an amenable number.

5660389 is a deficient number, since it is larger than the sum of its proper divisors (808635).

5660389 is an equidigital number, since it uses as much as digits as its factorization.

5660389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808634.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 5660389 is about 2379.1572037173. The cubic root of 5660389 is about 178.2168484554.

The spelling of 5660389 in words is "five million, six hundred sixty thousand, three hundred eighty-nine".