5665490 has 8 divisors (see below), whose sum is σ = 10197900. Its totient is φ = 2266192.

The previous prime is 5665483. The next prime is 5665507. The reversal of 5665490 is 945665.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5536609 + 128881 = 2353^2 + 359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665490.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283265 + ... + 283284.

Almost surely, 2^5665490 is an apocalyptic number.

5665490 is a deficient number, since it is larger than the sum of its proper divisors (4532410).

5665490 is a wasteful number, since it uses less digits than its factorization.

5665490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566556.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5665490 is about 2380.2289805815. The cubic root of 5665490 is about 178.2703672271.

The spelling of 5665490 in words is "five million, six hundred sixty-five thousand, four hundred ninety".