33812164 has 6 divisors (see below), whose sum is σ = 59171294. Its totient is φ = 16906080.

The previous prime is 33812159. The next prime is 33812179. The reversal of 33812164 is 46121833.

It can be written as a sum of positive squares in only one way, i.e., 18130564 + 15681600 = 4258^2 + 3960^2 .

It is a super-2 number, since 2×33812164² = 2286524868725792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4226517 + ... + 4226524.

Almost surely, 2^33812164 is an apocalyptic number.

It is an amenable number.

33812164 is a deficient number, since it is larger than the sum of its proper divisors (25359130).

33812164 is a wasteful number, since it uses less digits than its factorization.

33812164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453045 (or 8453043 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 33812164 is about 5814.8227831981. The cubic root of 33812164 is about 323.3634940748.

Adding to 33812164 its reverse (46121833), we get a palindrome (79933997).

The spelling of 33812164 in words is "thirty-three million, eight hundred twelve thousand, one hundred sixty-four".