716421888 has 576 divisors, whose sum is σ = 2802078720. Its totient is φ = 175177728.

The previous prime is 716421883. The next prime is 716421889. The reversal of 716421888 is 888124617.

It is a tau number, because it is divible by the number of its divisors (576).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (716421883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10692831 + ... + 10692897.

It is an arithmetic number, because the mean of its divisors is an integer number (4864720).

Almost surely, 2^716421888 is an apocalyptic number.

716421888 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 716421888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401039360).

716421888 is an abundant number, since it is smaller than the sum of its proper divisors (2085656832).

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

716421888 is a wasteful number, since it uses less digits than its factorization.

716421888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 109 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 716421888 is about 26766.0585069973. The cubic root of 716421888 is about 894.7937637430.

The spelling of 716421888 in words is "seven hundred sixteen million, four hundred twenty-one thousand, eight hundred eighty-eight".