33481837 has 2 divisors, whose sum is σ = 33481838. Its totient is φ = 33481836.

The previous prime is 33481831. The next prime is 33481853. The reversal of 33481837 is 73818433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33108516 + 373321 = 5754^2 + 611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33481837 is a prime.

It is a super-2 number, since 2×33481837² = 2242066817789138, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 33481796 and 33481805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33481831) 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 as a sum of consecutive naturals, namely, 16740918 + 16740919.

It is an arithmetic number, because the mean of its divisors is an integer number (16740919).

Almost surely, 2^33481837 is an apocalyptic number.

It is an amenable number.

33481837 is a deficient number, since it is larger than the sum of its proper divisors (1).

33481837 is an equidigital number, since it uses as much as digits as its factorization.

33481837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 33481837 is about 5786.3491944403. The cubic root of 33481837 is about 322.3070159236.

It can be divided in two parts, 3348183 and 7, that multiplied together give a triangular number (23437281 = T₆₈₄₆).

The spelling of 33481837 in words is "thirty-three million, four hundred eighty-one thousand, eight hundred thirty-seven".