70820328 has 32 divisors (see below), whose sum is σ = 178776000. Its totient is φ = 23376768.

The previous prime is 70820297. The next prime is 70820339. The reversal of 70820328 is 82302807.

It is a junction number, because it is equal to n+sod(n) for n = 70820295 and 70820304.

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 7 ways as a sum of consecutive naturals, for example, 11853 + ... + 16796.

It is an arithmetic number, because the mean of its divisors is an integer number (5586750).

Almost surely, 2^70820328 is an apocalyptic number.

It is an amenable number.

70820328 is an abundant number, since it is smaller than the sum of its proper divisors (107955672).

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

70820328 is a wasteful number, since it uses less digits than its factorization.

70820328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28761 (or 28757 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 70820328 is about 8415.4814479030. The cubic root of 70820328 is about 413.7321892766.

The spelling of 70820328 in words is "seventy million, eight hundred twenty thousand, three hundred twenty-eight".