31828036 has 12 divisors (see below), whose sum is σ = 55739628. Its totient is φ = 15902432.

The previous prime is 31828019. The next prime is 31828061. The reversal of 31828036 is 63082813.

It can be written as a sum of positive squares in 2 ways, for example, as 14137600 + 17690436 = 3760^2 + 4206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31827989 and 31828007.

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 3 ways as a sum of consecutive naturals, for example, 7170 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (4644969).

Almost surely, 2^31828036 is an apocalyptic number.

It is an amenable number.

31828036 is a deficient number, since it is larger than the sum of its proper divisors (23911592).

31828036 is a wasteful number, since it uses less digits than its factorization.

31828036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 31828036 is about 5641.6341604184. The cubic root of 31828036 is about 316.9104889792.

The spelling of 31828036 in words is "thirty-one million, eight hundred twenty-eight thousand, thirty-six".