13807477 has 4 divisors (see below), whose sum is σ = 13847616. Its totient is φ = 13767340.

The previous prime is 13807463. The next prime is 13807481. The reversal of 13807477 is 77470831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77470831 = 23 ⋅3368297.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13807477 is a prime.

It is a super-2 number, since 2×13807477² = 381292842211058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13807177) 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, 19549 + ... + 20242.

It is an arithmetic number, because the mean of its divisors is an integer number (3461904).

Almost surely, 2^13807477 is an apocalyptic number.

It is an amenable number.

13807477 is a deficient number, since it is larger than the sum of its proper divisors (40139).

13807477 is an equidigital number, since it uses as much as digits as its factorization.

13807477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40138.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 13807477 is about 3715.8413582929. The cubic root of 13807477 is about 239.9043426657.

The spelling of 13807477 in words is "thirteen million, eight hundred seven thousand, four hundred seventy-seven".