47138968 has 8 divisors (see below), whose sum is σ = 88385580. Its totient is φ = 23569480.

The previous prime is 47138951. The next prime is 47138969. The reversal of 47138968 is 86983174.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47138969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2946178 + ... + 2946193.

Almost surely, 2^47138968 is an apocalyptic number.

It is an amenable number.

47138968 is a deficient number, since it is larger than the sum of its proper divisors (41246612).

47138968 is a wasteful number, since it uses less digits than its factorization.

47138968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892377 (or 5892373 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 47138968 is about 6865.7824026108. The cubic root of 47138968 is about 361.2379398360.

The spelling of 47138968 in words is "forty-seven million, one hundred thirty-eight thousand, nine hundred sixty-eight".