13905982 has 4 divisors (see below), whose sum is σ = 20858976. Its totient is φ = 6952990.

The previous prime is 13905959. The next prime is 13906001. The reversal of 13905982 is 28950931.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3476494 + ... + 3476497.

It is an arithmetic number, because the mean of its divisors is an integer number (5214744).

Almost surely, 2^13905982 is an apocalyptic number.

13905982 is a deficient number, since it is larger than the sum of its proper divisors (6952994).

13905982 is an equidigital number, since it uses as much as digits as its factorization.

13905982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952993.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 13905982 is about 3729.0725388493. The cubic root of 13905982 is about 240.4734980875.

The spelling of 13905982 in words is "thirteen million, nine hundred five thousand, nine hundred eighty-two".