47671851 has 4 divisors (see below), whose sum is σ = 63562472. Its totient is φ = 31781232.

The previous prime is 47671849. The next prime is 47671861. The reversal of 47671851 is 15817674.

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

It is not a de Polignac number, because 47671851 - 2¹ = 47671849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47671861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945306 + ... + 7945311.

It is an arithmetic number, because the mean of its divisors is an integer number (15890618).

Almost surely, 2^47671851 is an apocalyptic number.

47671851 is a deficient number, since it is larger than the sum of its proper divisors (15890621).

47671851 is a wasteful number, since it uses less digits than its factorization.

47671851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15890620.

The product of its digits is 47040, while the sum is 39.

The square root of 47671851 is about 6904.4805018191. The cubic root of 47671851 is about 362.5940486851.

It can be divided in two parts, 476 and 71851, that added together give a palindrome (72327).

The spelling of 47671851 in words is "forty-seven million, six hundred seventy-one thousand, eight hundred fifty-one".