799617280 has 432 divisors, whose sum is σ = 2600458560. Its totient is φ = 232243200.

The previous prime is 799617277. The next prime is 799617289. The reversal of 799617280 is 82716997.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799617289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13108450 + ... + 13108510.

It is an arithmetic number, because the mean of its divisors is an integer number (6019580).

Almost surely, 2^799617280 is an apocalyptic number.

799617280 is a gapful number since it is divisible by the number (70) 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 799617280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300229280).

799617280 is an abundant number, since it is smaller than the sum of its proper divisors (1800841280).

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

799617280 is a wasteful number, since it uses less digits than its factorization.

799617280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 799617280 is about 28277.5048404204. The cubic root of 799617280 is about 928.1697073696.

The spelling of 799617280 in words is "seven hundred ninety-nine million, six hundred seventeen thousand, two hundred eighty".