12489722 has 8 divisors (see below), whose sum is σ = 21410976. Its totient is φ = 5352732.

The previous prime is 12489721. The next prime is 12489727. The reversal of 12489722 is 22798421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12489721) 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, 446048 + ... + 446075.

It is an arithmetic number, because the mean of its divisors is an integer number (2676372).

Almost surely, 2^12489722 is an apocalyptic number.

12489722 is a deficient number, since it is larger than the sum of its proper divisors (8921254).

12489722 is an equidigital number, since it uses as much as digits as its factorization.

12489722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892132.

The product of its digits is 16128, while the sum is 35.

The square root of 12489722 is about 3534.0800783231. The cubic root of 12489722 is about 232.0158159055.

The spelling of 12489722 in words is "twelve million, four hundred eighty-nine thousand, seven hundred twenty-two".