70823828 has 12 divisors (see below), whose sum is σ = 124130580. Its totient is φ = 35357952.

The previous prime is 70823827. The next prime is 70823833. The reversal of 70823828 is 82832807.

It can be written as a sum of positive squares in 2 ways, for example, as 13337104 + 57486724 = 3652^2 + 7582^2 .

It is a super-2 number, since 2×70823828² = 10032029225147168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70823791 and 70823800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70823827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10463 + ... + 15846.

It is an arithmetic number, because the mean of its divisors is an integer number (10344215).

Almost surely, 2^70823828 is an apocalyptic number.

It is an amenable number.

70823828 is a deficient number, since it is larger than the sum of its proper divisors (53306752).

70823828 is a wasteful number, since it uses less digits than its factorization.

70823828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26986 (or 26984 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 70823828 is about 8415.6893954090. The cubic root of 70823828 is about 413.7390048282.

The spelling of 70823828 in words is "seventy million, eight hundred twenty-three thousand, eight hundred twenty-eight".