31484636 has 6 divisors (see below), whose sum is σ = 55098120. Its totient is φ = 15742316.

The previous prime is 31484627. The next prime is 31484647. The reversal of 31484636 is 63648413.

It is a junction number, because it is equal to n+sod(n) for n = 31484596 and 31484605.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3935576 + ... + 3935583.

It is an arithmetic number, because the mean of its divisors is an integer number (9183020).

Almost surely, 2^31484636 is an apocalyptic number.

It is an amenable number.

31484636 is a deficient number, since it is larger than the sum of its proper divisors (23613484).

31484636 is a wasteful number, since it uses less digits than its factorization.

31484636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871163 (or 7871161 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 31484636 is about 5611.1171793147. The cubic root of 31484636 is about 315.7666252104.

The spelling of 31484636 in words is "thirty-one million, four hundred eighty-four thousand, six hundred thirty-six".