31838463 has 24 divisors (see below), whose sum is σ = 49297248. Its totient is φ = 19749312.

The previous prime is 31838461. The next prime is 31838473. The reversal of 31838463 is 36483813.

It is a happy number.

It is not a de Polignac number, because 31838463 - 2¹ = 31838461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31838461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5581 + ... + 9737.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052).

Almost surely, 2^31838463 is an apocalyptic number.

31838463 is a deficient number, since it is larger than the sum of its proper divisors (17458785).

31838463 is a wasteful number, since it uses less digits than its factorization.

31838463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223 (or 4220 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 31838463 is about 5642.5581964212. The cubic root of 31838463 is about 316.9450922756.

It can be divided in two parts, 318 and 38463, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 31838463 in words is "thirty-one million, eight hundred thirty-eight thousand, four hundred sixty-three".