5687990 has 64 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 1731840.

The previous prime is 5687977. The next prime is 5687993. The reversal of 5687990 is 997865.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5687993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63866 + ... + 63954.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

Almost surely, 2^5687990 is an apocalyptic number.

5687990 is an abundant number, since it is smaller than the sum of its proper divisors (7375690).

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

5687990 is a wasteful number, since it uses less digits than its factorization.

5687990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 5687990 is about 2384.9507332438. The cubic root of 5687990 is about 178.5060505812.

It can be divided in two parts, 568 and 7990, that added together give a palindrome (8558).

The spelling of 5687990 in words is "five million, six hundred eighty-seven thousand, nine hundred ninety".