13642477 has 2 divisors, whose sum is σ = 13642478. Its totient is φ = 13642476.

The previous prime is 13642469. The next prime is 13642501. The reversal of 13642477 is 77424631.

13642477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 3587236 = 3171^2 + 1894^2 .

It is an emirp because it is prime and its reverse (77424631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13642477 - 2³ = 13642469 is a prime.

It is a super-2 number, since 2×13642477² = 372234357391058, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 13642477 parts by 5223 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13642457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6821238 + 6821239.

It is an arithmetic number, because the mean of its divisors is an integer number (6821239).

Almost surely, 2^13642477 is an apocalyptic number.

It is an amenable number.

13642477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13642477 is an equidigital number, since it uses as much as digits as its factorization.

13642477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 34.

The square root of 13642477 is about 3693.5723899769. The cubic root of 13642477 is about 238.9448878836.

The spelling of 13642477 in words is "thirteen million, six hundred forty-two thousand, four hundred seventy-seven".