33873161 has 6 divisors (see below), whose sum is σ = 39403530. Its totient is φ = 29034096.

The previous prime is 33873137. The next prime is 33873179. The reversal of 33873161 is 16137833.

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 2119936 = 5635^2 + 1456^2 .

It is a de Polignac number, because none of the positive numbers 2^k-33873161 is a prime.

It is a super-2 number, since 2×33873161² = 2294782072263842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33873101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345596 + ... + 345693.

It is an arithmetic number, because the mean of its divisors is an integer number (6567255).

Almost surely, 2^33873161 is an apocalyptic number.

It is an amenable number.

33873161 is a deficient number, since it is larger than the sum of its proper divisors (5530369).

33873161 is an equidigital number, since it uses as much as digits as its factorization.

33873161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691303 (or 691296 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 33873161 is about 5820.0653776397. The cubic root of 33873161 is about 323.5578260528.

The spelling of 33873161 in words is "thirty-three million, eight hundred seventy-three thousand, one hundred sixty-one".