13973782 has 4 divisors (see below), whose sum is σ = 20960676. Its totient is φ = 6986890.

The previous prime is 13973767. The next prime is 13973789. The reversal of 13973782 is 28737931.

13973782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13973789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493444 + ... + 3493447.

It is an arithmetic number, because the mean of its divisors is an integer number (5240169).

Almost surely, 2^13973782 is an apocalyptic number.

13973782 is a deficient number, since it is larger than the sum of its proper divisors (6986894).

13973782 is an equidigital number, since it uses as much as digits as its factorization.

13973782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986893.

The product of its digits is 63504, while the sum is 40.

The square root of 13973782 is about 3738.1522173395. The cubic root of 13973782 is about 240.8636821413.

The spelling of 13973782 in words is "thirteen million, nine hundred seventy-three thousand, seven hundred eighty-two".