70828500 has 96 divisors (see below), whose sum is σ = 215324928. Its totient is φ = 18057600.

The previous prime is 70828493. The next prime is 70828529. The reversal of 70828500 is 582807.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33474 + ... + 35526.

It is an arithmetic number, because the mean of its divisors is an integer number (2242968).

Almost surely, 2^70828500 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 70828500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107662464).

70828500 is an abundant number, since it is smaller than the sum of its proper divisors (144496428).

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

70828500 is a wasteful number, since it uses less digits than its factorization.

70828500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 70828500 is about 8415.9669676158. The cubic root of 70828500 is about 413.7481022661.

The spelling of 70828500 in words is "seventy million, eight hundred twenty-eight thousand, five hundred".