5209890 has 32 divisors (see below), whose sum is σ = 14290560. Its totient is φ = 1190784.

The previous prime is 5209889. The next prime is 5209901. The reversal of 5209890 is 989025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12195 + ... + 12614.

It is an arithmetic number, because the mean of its divisors is an integer number (446580).

Almost surely, 2^5209890 is an apocalyptic number.

5209890 is an abundant number, since it is smaller than the sum of its proper divisors (9080670).

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

5209890 is a wasteful number, since it uses less digits than its factorization.

5209890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24826.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 5209890 is about 2282.5183460380. The cubic root of 5209890 is about 173.3575861856.

The spelling of 5209890 in words is "five million, two hundred nine thousand, eight hundred ninety".