5709990 has 80 divisors (see below), whose sum is σ = 16233840. Its totient is φ = 1277760.

The previous prime is 5709953. The next prime is 5710021. The reversal of 5709990 is 999075.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 439224 + ... + 439236.

It is an arithmetic number, because the mean of its divisors is an integer number (202923).

Almost surely, 2^5709990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5709990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8116920).

5709990 is an abundant number, since it is smaller than the sum of its proper divisors (10523850).

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

5709990 is a wasteful number, since it uses less digits than its factorization.

5709990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 5709990 is about 2389.5585366339. The cubic root of 5709990 is about 178.7358963231.

Subtracting from 5709990 its reverse (999075), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 5709990 in words is "five million, seven hundred nine thousand, nine hundred ninety".