33680147 has 4 divisors (see below), whose sum is σ = 34501656. Its totient is φ = 32858640.

The previous prime is 33680131. The next prime is 33680161. The reversal of 33680147 is 74108633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74108633 = 67 ⋅1106099.

It is a cyclic number.

It is not a de Polignac number, because 33680147 - 2⁴ = 33680131 is a prime.

It is a super-2 number, since 2×33680147² = 2268704603883218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33680177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410693 + ... + 410774.

It is an arithmetic number, because the mean of its divisors is an integer number (8625414).

Almost surely, 2^33680147 is an apocalyptic number.

33680147 is a deficient number, since it is larger than the sum of its proper divisors (821509).

33680147 is an equidigital number, since it uses as much as digits as its factorization.

33680147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821508.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 33680147 is about 5803.4599162913. The cubic root of 33680147 is about 322.9420958418.

The spelling of 33680147 in words is "thirty-three million, six hundred eighty thousand, one hundred forty-seven".