13725407 has 4 divisors (see below), whose sum is σ = 13747080. Its totient is φ = 13703736.

The previous prime is 13725401. The next prime is 13725431. The reversal of 13725407 is 70452731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70452731 = 863 ⋅81637.

It is a cyclic number.

It is not a de Polignac number, because 13725407 - 2¹⁰ = 13724383 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 13725407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13725401) 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, 9857 + ... + 11162.

It is an arithmetic number, because the mean of its divisors is an integer number (3436770).

Almost surely, 2^13725407 is an apocalyptic number.

13725407 is a deficient number, since it is larger than the sum of its proper divisors (21673).

13725407 is an equidigital number, since it uses as much as digits as its factorization.

13725407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21672.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13725407 is about 3704.7816399891. The cubic root of 13725407 is about 239.4280768396.

The spelling of 13725407 in words is "thirteen million, seven hundred twenty-five thousand, four hundred seven".