20673233 has 16 divisors (see below), whose sum is σ = 24350976. Its totient is φ = 17184960.

The previous prime is 20673229. The next prime is 20673253. The reversal of 20673233 is 33237602.

It is a cyclic number.

It is not a de Polignac number, because 20673233 - 2² = 20673229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20673203) 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, 37943 + ... + 38483.

It is an arithmetic number, because the mean of its divisors is an integer number (1521936).

Almost surely, 2^20673233 is an apocalyptic number.

It is an amenable number.

20673233 is a deficient number, since it is larger than the sum of its proper divisors (3677743).

20673233 is a wasteful number, since it uses less digits than its factorization.

20673233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 20673233 is about 4546.7827086853. The cubic root of 20673233 is about 274.4539379005.

The spelling of 20673233 in words is "twenty million, six hundred seventy-three thousand, two hundred thirty-three".