709889400 has 768 divisors, whose sum is σ = 3053376000. Its totient is φ = 149299200.

The previous prime is 709889377. The next prime is 709889441. The reversal of 709889400 is 4988907.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 19186182 + ... + 19186218.

It is an arithmetic number, because the mean of its divisors is an integer number (3975750).

Almost surely, 2^709889400 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 709889400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526688000).

709889400 is an abundant number, since it is smaller than the sum of its proper divisors (2343486600).

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

709889400 is a wasteful number, since it uses less digits than its factorization.

709889400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 709889400 is about 26643.7497361013. The cubic root of 709889400 is about 892.0658152219.

The spelling of 709889400 in words is "seven hundred nine million, eight hundred eighty-nine thousand, four hundred".