47161668 has 12 divisors (see below), whose sum is σ = 110043920. Its totient is φ = 15720552.

The previous prime is 47161651. The next prime is 47161693. The reversal of 47161668 is 86616174.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965058 + ... + 1965081.

Almost surely, 2^47161668 is an apocalyptic number.

It is an amenable number.

47161668 is an abundant number, since it is smaller than the sum of its proper divisors (62882252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47161668 is a wasteful number, since it uses less digits than its factorization.

47161668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930146 (or 3930144 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 47161668 is about 6867.4353291458. The cubic root of 47161668 is about 361.2959158281.

It can be divided in two parts, 4716166 and 8, that added together give a palindrome (4716174).

The spelling of 47161668 in words is "forty-seven million, one hundred sixty-one thousand, six hundred sixty-eight".