13970487 has 8 divisors (see below), whose sum is σ = 18661104. Its totient is φ = 9296768.

The previous prime is 13970483. The next prime is 13970501. The reversal of 13970487 is 78407931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13970487 - 2² = 13970483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13970483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2148 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (2332638).

Almost surely, 2^13970487 is an apocalyptic number.

13970487 is a deficient number, since it is larger than the sum of its proper divisors (4690617).

13970487 is an equidigital number, since it uses as much as digits as its factorization.

13970487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8449.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 13970487 is about 3737.7114655896. The cubic root of 13970487 is about 240.8447488699.

The spelling of 13970487 in words is "thirteen million, nine hundred seventy thousand, four hundred eighty-seven".