709889124 has 96 divisors (see below), whose sum is σ = 1923496960. Its totient is φ = 199594368.

The previous prime is 709889101. The next prime is 709889137. The reversal of 709889124 is 421988907.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903002 + ... + 1903374.

Almost surely, 2^709889124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709889124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961748480).

709889124 is an abundant number, since it is smaller than the sum of its proper divisors (1213607836).

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

709889124 is a wasteful number, since it uses less digits than its factorization.

709889124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 709889124 is about 26643.7445566497. The cubic root of 709889124 is about 892.0656996123.

The spelling of 709889124 in words is "seven hundred nine million, eight hundred eighty-nine thousand, one hundred twenty-four".