70828235 has 4 divisors (see below), whose sum is σ = 84993888. Its totient is φ = 56662584.

The previous prime is 70828231. The next prime is 70828243. The reversal of 70828235 is 53282807.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70828235 - 2² = 70828231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70828195 and 70828204.

It is not an unprimeable number, because it can be changed into a prime (70828231) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7082819 + ... + 7082828.

It is an arithmetic number, because the mean of its divisors is an integer number (21248472).

Almost surely, 2^70828235 is an apocalyptic number.

70828235 is a deficient number, since it is larger than the sum of its proper divisors (14165653).

70828235 is a wasteful number, since it uses less digits than its factorization.

70828235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14165652.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 70828235 is about 8415.9512237180. The cubic root of 70828235 is about 413.7475862621.

The spelling of 70828235 in words is "seventy million, eight hundred twenty-eight thousand, two hundred thirty-five".