47271951 has 32 divisors (see below), whose sum is σ = 74692800. Its totient is φ = 29445120.

The previous prime is 47271949. The next prime is 47271971. The reversal of 47271951 is 15917274.

It is a happy number.

It is not a de Polignac number, because 47271951 - 2¹ = 47271949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47271901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82795 + ... + 83363.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^47271951 is an apocalyptic number.

47271951 is a deficient number, since it is larger than the sum of its proper divisors (27420849).

47271951 is a wasteful number, since it uses less digits than its factorization.

47271951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 770 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 47271951 is about 6875.4600573343. The cubic root of 47271951 is about 361.5773151207.

The spelling of 47271951 in words is "forty-seven million, two hundred seventy-one thousand, nine hundred fifty-one".