13700447 has 4 divisors (see below), whose sum is σ = 13959000. Its totient is φ = 13441896.

The previous prime is 13700443. The next prime is 13700461. The reversal of 13700447 is 74400731.

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

It is a cyclic number.

It is not a de Polignac number, because 13700447 - 2² = 13700443 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 (13700443) 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 3 ways as a sum of consecutive naturals, for example, 129197 + ... + 129302.

It is an arithmetic number, because the mean of its divisors is an integer number (3489750).

Almost surely, 2^13700447 is an apocalyptic number.

13700447 is a deficient number, since it is larger than the sum of its proper divisors (258553).

13700447 is an equidigital number, since it uses as much as digits as its factorization.

13700447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258552.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 13700447 is about 3701.4114875274. The cubic root of 13700447 is about 239.2828534341.

The spelling of 13700447 in words is "thirteen million, seven hundred thousand, four hundred forty-seven".