12209963 has 4 divisors (see below), whose sum is σ = 12540000. Its totient is φ = 11879928.

The previous prime is 12209959. The next prime is 12209969. The reversal of 12209963 is 36990221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12209963 - 2² = 12209959 is a prime.

It is a super-2 number, since 2×12209963² = 298166392922738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12209969) 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, 164963 + ... + 165036.

It is an arithmetic number, because the mean of its divisors is an integer number (3135000).

Almost surely, 2^12209963 is an apocalyptic number.

12209963 is a deficient number, since it is larger than the sum of its proper divisors (330037).

12209963 is an equidigital number, since it uses as much as digits as its factorization.

12209963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330036.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 12209963 is about 3494.2757475620. The cubic root of 12209963 is about 230.2704003148.

The spelling of 12209963 in words is "twelve million, two hundred nine thousand, nine hundred sixty-three".