20963049 has 4 divisors (see below), whose sum is σ = 27950736. Its totient is φ = 13975364.

The previous prime is 20963039. The next prime is 20963069. The reversal of 20963049 is 94036902.

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.

It is a cyclic number.

It is not a de Polignac number, because 20963049 - 2⁵ = 20963017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20963029) 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, 3493839 + ... + 3493844.

It is an arithmetic number, because the mean of its divisors is an integer number (6987684).

Almost surely, 2^20963049 is an apocalyptic number.

It is an amenable number.

20963049 is a deficient number, since it is larger than the sum of its proper divisors (6987687).

20963049 is an equidigital number, since it uses as much as digits as its factorization.

20963049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987686.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 20963049 is about 4578.5422352535. The cubic root of 20963049 is about 275.7305051636.

The spelling of 20963049 in words is "twenty million, nine hundred sixty-three thousand, forty-nine".