5656890 has 16 divisors (see below), whose sum is σ = 13576608. Its totient is φ = 1508496.

The previous prime is 5656837. The next prime is 5656921. The reversal of 5656890 is 986565.

It is a super-3 number, since 3×5656890³ (a number of 21 digits) contains 333 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 94252 + ... + 94311.

It is an arithmetic number, because the mean of its divisors is an integer number (848538).

Almost surely, 2^5656890 is an apocalyptic number.

5656890 is an abundant number, since it is smaller than the sum of its proper divisors (7919718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5656890 is a wasteful number, since it uses less digits than its factorization.

5656890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188573.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 5656890 is about 2378.4217456120. The cubic root of 5656890 is about 178.1801189841.

The spelling of 5656890 in words is "five million, six hundred fifty-six thousand, eight hundred ninety".