33172841 has 12 divisors (see below), whose sum is σ = 37815120. Its totient is φ = 29006640.

The previous prime is 33172819. The next prime is 33172847. The reversal of 33172841 is 14827133.

It is not a de Polignac number, because 33172841 - 2¹⁴ = 33156457 is a prime.

It is a super-2 number, since 2×33172841² = 2200874760022562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33172847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1955 + ... + 8376.

It is an arithmetic number, because the mean of its divisors is an integer number (3151260).

Almost surely, 2^33172841 is an apocalyptic number.

It is an amenable number.

33172841 is a deficient number, since it is larger than the sum of its proper divisors (4642279).

33172841 is a wasteful number, since it uses less digits than its factorization.

33172841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376 (or 10363 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 33172841 is about 5759.5868775460. The cubic root of 33172841 is about 321.3124515345.

Adding to 33172841 its reverse (14827133), we get a palindrome (47999974).

It can be divided in two parts, 33 and 172841, that multiplied together give a triangular number (5703753 = T₃₃₇₇).

The spelling of 33172841 in words is "thirty-three million, one hundred seventy-two thousand, eight hundred forty-one".