13820757 has 8 divisors (see below), whose sum is σ = 18775584. Its totient is φ = 9039888.

The previous prime is 13820747. The next prime is 13820767. The reversal of 13820757 is 75702831.

13820757 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13820747) and next prime (13820767).

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

It is not a de Polignac number, because 13820757 - 2⁷ = 13820629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820747) 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, 43303 + ... + 43620.

It is an arithmetic number, because the mean of its divisors is an integer number (2346948).

Almost surely, 2^13820757 is an apocalyptic number.

It is an amenable number.

13820757 is a deficient number, since it is larger than the sum of its proper divisors (4954827).

13820757 is an equidigital number, since it uses as much as digits as its factorization.

13820757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86979.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 13820757 is about 3717.6278727167. The cubic root of 13820757 is about 239.9812311711.

The spelling of 13820757 in words is "thirteen million, eight hundred twenty thousand, seven hundred fifty-seven".