13941487 has 4 divisors (see below), whose sum is σ = 15933136. Its totient is φ = 11949840.

The previous prime is 13941457. The next prime is 13941511. The reversal of 13941487 is 78414931.

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

It is a de Polignac number, because none of the positive numbers 2^k-13941487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13941407) 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, 995814 + ... + 995827.

It is an arithmetic number, because the mean of its divisors is an integer number (3983284).

Almost surely, 2^13941487 is an apocalyptic number.

13941487 is a deficient number, since it is larger than the sum of its proper divisors (1991649).

13941487 is an equidigital number, since it uses as much as digits as its factorization.

13941487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991648.

The product of its digits is 24192, while the sum is 37.

The square root of 13941487 is about 3733.8300711200. The cubic root of 13941487 is about 240.6779845541.

The spelling of 13941487 in words is "thirteen million, nine hundred forty-one thousand, four hundred eighty-seven".