33816073 has 4 divisors (see below), whose sum is σ = 34031620. Its totient is φ = 33600528.

The previous prime is 33816061. The next prime is 33816089. The reversal of 33816073 is 37061833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37061833 = 31 ⋅1195543.

It can be written as a sum of positive squares in 2 ways, for example, as 21049744 + 12766329 = 4588^2 + 3573^2 .

It is a cyclic number.

It is not a de Polignac number, because 33816073 - 2²⁵ = 261641 is a prime.

It is a super-2 number, since 2×33816073² = 2287053586282658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33816023) 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, 107538 + ... + 107851.

It is an arithmetic number, because the mean of its divisors is an integer number (8507905).

Almost surely, 2^33816073 is an apocalyptic number.

It is an amenable number.

33816073 is a deficient number, since it is larger than the sum of its proper divisors (215547).

33816073 is a wasteful number, since it uses less digits than its factorization.

33816073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215546.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 33816073 is about 5815.1588972271. The cubic root of 33816073 is about 323.3759548684.

The spelling of 33816073 in words is "thirty-three million, eight hundred sixteen thousand, seventy-three".