47165938 has 4 divisors (see below), whose sum is σ = 70748910. Its totient is φ = 23582968.

The previous prime is 47165929. The next prime is 47165947. The reversal of 47165938 is 83956174.

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

It is an interprime number because it is at equal distance from previous prime (47165929) and next prime (47165947).

It can be written as a sum of positive squares in only one way, i.e., 46607929 + 558009 = 6827^2 + 747^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47165894 and 47165903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11791483 + ... + 11791486.

Almost surely, 2^47165938 is an apocalyptic number.

47165938 is a deficient number, since it is larger than the sum of its proper divisors (23582972).

47165938 is a wasteful number, since it uses less digits than its factorization.

47165938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23582971.

The product of its digits is 181440, while the sum is 43.

The square root of 47165938 is about 6867.7462096382. The cubic root of 47165938 is about 361.3068193653.

The spelling of 47165938 in words is "forty-seven million, one hundred sixty-five thousand, nine hundred thirty-eight".