707828280 has 128 divisors (see below), whose sum is σ = 2245190400. Its totient is φ = 178025472.

The previous prime is 707828263. The next prime is 707828287. The reversal of 707828280 is 82828707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707828287) 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, 644692 + ... + 645788.

It is an arithmetic number, because the mean of its divisors is an integer number (17540550).

Almost surely, 2^707828280 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 707828280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122595200).

707828280 is an abundant number, since it is smaller than the sum of its proper divisors (1537362120).

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

707828280 is a wasteful number, since it uses less digits than its factorization.

707828280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 707828280 is about 26605.0423792183. The cubic root of 707828280 is about 891.2016256536.

The spelling of 707828280 in words is "seven hundred seven million, eight hundred twenty-eight thousand, two hundred eighty".