716689428 has 96 divisors (see below), whose sum is σ = 2106187776. Its totient is φ = 184609152.

The previous prime is 716689423. The next prime is 716689439. The reversal of 716689428 is 824986617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716689423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39325 + ... + 54587.

It is an arithmetic number, because the mean of its divisors is an integer number (21939456).

Almost surely, 2^716689428 is an apocalyptic number.

716689428 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716689428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053093888).

716689428 is an abundant number, since it is smaller than the sum of its proper divisors (1389498348).

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

716689428 is a wasteful number, since it uses less digits than its factorization.

716689428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15333 (or 15331 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 716689428 is about 26771.0557879214. The cubic root of 716689428 is about 894.9051335630.

The spelling of 716689428 in words is "seven hundred sixteen million, six hundred eighty-nine thousand, four hundred twenty-eight".