12920633 has 4 divisors (see below), whose sum is σ = 14095248. Its totient is φ = 11746020.

The previous prime is 12920581. The next prime is 12920647. The reversal of 12920633 is 33602921.

12920633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33602921 = 11 ⋅3054811.

It is not a de Polignac number, because 12920633 - 2⁸ = 12920377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12920653) 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, 587291 + ... + 587312.

It is an arithmetic number, because the mean of its divisors is an integer number (3523812).

Almost surely, 2^12920633 is an apocalyptic number.

It is an amenable number.

12920633 is a deficient number, since it is larger than the sum of its proper divisors (1174615).

12920633 is a wasteful number, since it uses less digits than its factorization.

12920633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174614.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 12920633 is about 3594.5282026992. The cubic root of 12920633 is about 234.6539829990.

The spelling of 12920633 in words is "twelve million, nine hundred twenty thousand, six hundred thirty-three".