33809373 has 16 divisors (see below), whose sum is σ = 53941440. Its totient is φ = 20805552.

The previous prime is 33809371. The next prime is 33809383. The reversal of 33809373 is 37390833.

It is a happy number.

It is not a de Polignac number, because 33809373 - 2¹ = 33809371 is a prime.

It is a super-2 number, since 2×33809373² = 2286147405306258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33809371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47811 + ... + 48512.

It is an arithmetic number, because the mean of its divisors is an integer number (3371340).

Almost surely, 2^33809373 is an apocalyptic number.

It is an amenable number.

33809373 is a deficient number, since it is larger than the sum of its proper divisors (20132067).

33809373 is a wasteful number, since it uses less digits than its factorization.

33809373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96345 (or 96339 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 33809373 is about 5814.5827881285. The cubic root of 33809373 is about 323.3545965634.

The spelling of 33809373 in words is "thirty-three million, eight hundred nine thousand, three hundred seventy-three".