13657946 has 4 divisors (see below), whose sum is σ = 20486922. Its totient is φ = 6828972.

The previous prime is 13657939. The next prime is 13657957. The reversal of 13657946 is 64975631.

13657946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13402921 + 255025 = 3661^2 + 505^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3414485 + ... + 3414488.

Almost surely, 2^13657946 is an apocalyptic number.

13657946 is a deficient number, since it is larger than the sum of its proper divisors (6828976).

13657946 is an equidigital number, since it uses as much as digits as its factorization.

13657946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828975.

The product of its digits is 136080, while the sum is 41.

The square root of 13657946 is about 3695.6658398724. The cubic root of 13657946 is about 239.0351657784.

The spelling of 13657946 in words is "thirteen million, six hundred fifty-seven thousand, nine hundred forty-six".