13725777 has 16 divisors (see below), whose sum is σ = 20346368. Its totient is φ = 8173440.

The previous prime is 13725769. The next prime is 13725841. The reversal of 13725777 is 77752731.

It is not a de Polignac number, because 13725777 - 2³ = 13725769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13725727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4468 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (1271648).

Almost surely, 2^13725777 is an apocalyptic number.

It is an amenable number.

13725777 is a deficient number, since it is larger than the sum of its proper divisors (6620591).

13725777 is a wasteful number, since it uses less digits than its factorization.

13725777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400.

The product of its digits is 72030, while the sum is 39.

The square root of 13725777 is about 3704.8315751192. The cubic root of 13725777 is about 239.4302282656.

The spelling of 13725777 in words is "thirteen million, seven hundred twenty-five thousand, seven hundred seventy-seven".