13725947 has 4 divisors (see below), whose sum is σ = 13735416. Its totient is φ = 13716480.

The previous prime is 13725941. The next prime is 13725977. The reversal of 13725947 is 74952731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74952731 = 7 ⋅10707533.

It is a cyclic number.

It is not a de Polignac number, because 13725947 - 2⁴ = 13725931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13725947.

It is not an unprimeable number, because it can be changed into a prime (13725941) 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, 2054 + ... + 5627.

It is an arithmetic number, because the mean of its divisors is an integer number (3433854).

Almost surely, 2^13725947 is an apocalyptic number.

13725947 is a deficient number, since it is larger than the sum of its proper divisors (9469).

13725947 is an equidigital number, since it uses as much as digits as its factorization.

13725947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468.

The product of its digits is 52920, while the sum is 38.

The square root of 13725947 is about 3704.8545180614. The cubic root of 13725947 is about 239.4312167457.

The spelling of 13725947 in words is "thirteen million, seven hundred twenty-five thousand, nine hundred forty-seven".