12961722 has 16 divisors (see below), whose sum is σ = 26191872. Its totient is φ = 4275840.

The previous prime is 12961721. The next prime is 12961723. The reversal of 12961722 is 22716921.

It is an interprime number because it is at equal distance from previous prime (12961721) and next prime (12961723).

It is a self number, because there is not a number n which added to its sum of digits gives 12961722.

It is not an unprimeable number, because it can be changed into a prime (12961721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10554 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (1636992).

Almost surely, 2^12961722 is an apocalyptic number.

12961722 is an abundant number, since it is smaller than the sum of its proper divisors (13230150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12961722 is a wasteful number, since it uses less digits than its factorization.

12961722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22373.

The product of its digits is 3024, while the sum is 30.

The square root of 12961722 is about 3600.2391587227. The cubic root of 12961722 is about 234.9024614077.

The spelling of 12961722 in words is "twelve million, nine hundred sixty-one thousand, seven hundred twenty-two".