33828197 has 4 divisors (see below), whose sum is σ = 36430380. Its totient is φ = 31226016.

The previous prime is 33828191. The next prime is 33828199. The reversal of 33828197 is 79182833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23030401 + 10797796 = 4799^2 + 3286^2 .

It is a cyclic number.

It is not a de Polignac number, because 33828197 - 2⁶ = 33828133 is a prime.

It is a super-2 number, since 2×33828197² = 2288693824541618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33828191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301072 + ... + 1301097.

It is an arithmetic number, because the mean of its divisors is an integer number (9107595).

Almost surely, 2^33828197 is an apocalyptic number.

It is an amenable number.

33828197 is a deficient number, since it is larger than the sum of its proper divisors (2602183).

33828197 is a wasteful number, since it uses less digits than its factorization.

33828197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602182.

The product of its digits is 72576, while the sum is 41.

The square root of 33828197 is about 5816.2012516762. The cubic root of 33828197 is about 323.4145966668.

The spelling of 33828197 in words is "thirty-three million, eight hundred twenty-eight thousand, one hundred ninety-seven".