13977722 has 8 divisors (see below), whose sum is σ = 22872672. Its totient is φ = 6353500.

The previous prime is 13977713. The next prime is 13977727. The reversal of 13977722 is 22777931.

13977722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (13977727) 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, 317654 + ... + 317697.

It is an arithmetic number, because the mean of its divisors is an integer number (2859084).

Almost surely, 2^13977722 is an apocalyptic number.

13977722 is a deficient number, since it is larger than the sum of its proper divisors (8894950).

13977722 is a wasteful number, since it uses less digits than its factorization.

13977722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635364.

The product of its digits is 37044, while the sum is 38.

The square root of 13977722 is about 3738.6791785335. The cubic root of 13977722 is about 240.8863177153.

It can be divided in two parts, 1397 and 7722, that added together give a palindrome (9119).

The spelling of 13977722 in words is "thirteen million, nine hundred seventy-seven thousand, seven hundred twenty-two".