705658828 has 48 divisors (see below), whose sum is σ = 1460107264. Its totient is φ = 292014720.

The previous prime is 705658819. The next prime is 705658829. The reversal of 705658828 is 828856507.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (705658829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682600 + ... + 683632.

Almost surely, 2^705658828 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 705658828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730053632).

705658828 is an abundant number, since it is smaller than the sum of its proper divisors (754448436).

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

705658828 is a wasteful number, since it uses less digits than its factorization.

705658828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 705658828 is about 26564.2396465624. The cubic root of 705658828 is about 890.2902003611.

The spelling of 705658828 in words is "seven hundred five million, six hundred fifty-eight thousand, eight hundred twenty-eight".