13977712 has 40 divisors (see below), whose sum is σ = 31796576. Its totient is φ = 5826816.

The previous prime is 13977703. The next prime is 13977713. The reversal of 13977712 is 21777931.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977713) 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, 2458 + ... + 5830.

Almost surely, 2^13977712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13977712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15898288).

13977712 is an abundant number, since it is smaller than the sum of its proper divisors (17818864).

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

13977712 is a wasteful number, since it uses less digits than its factorization.

13977712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3419 counting only the distinct ones).

The product of its digits is 18522, while the sum is 37.

The square root of 13977712 is about 3738.6778411626. The cubic root of 13977712 is about 240.8862602700.

The spelling of 13977712 in words is "thirteen million, nine hundred seventy-seven thousand, seven hundred twelve".