70728200 has 24 divisors (see below), whose sum is σ = 164443530. Its totient is φ = 28291200.

The previous prime is 70728191. The next prime is 70728223. The reversal of 70728200 is 282707.

It can be written as a sum of positive squares in 3 ways, for example, as 25542916 + 45185284 = 5054^2 + 6722^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70728200.

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 5 ways as a sum of consecutive naturals, for example, 176621 + ... + 177020.

Almost surely, 2^70728200 is an apocalyptic number.

It is an amenable number.

70728200 is an abundant number, since it is smaller than the sum of its proper divisors (93715330).

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

70728200 is a wasteful number, since it uses less digits than its factorization.

70728200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353657 (or 353648 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 70728200 is about 8410.0059453011. The cubic root of 70728200 is about 413.5527075737.

The spelling of 70728200 in words is "seventy million, seven hundred twenty-eight thousand, two hundred".