47867191 has 2 divisors, whose sum is σ = 47867192. Its totient is φ = 47867190.

The previous prime is 47867177. The next prime is 47867203. The reversal of 47867191 is 19176874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47867191 - 2⁷ = 47867063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47867161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23933595 + 23933596.

It is an arithmetic number, because the mean of its divisors is an integer number (23933596).

Almost surely, 2^47867191 is an apocalyptic number.

47867191 is a deficient number, since it is larger than the sum of its proper divisors (1).

47867191 is an equidigital number, since it uses as much as digits as its factorization.

47867191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 47867191 is about 6918.6119272582. The cubic root of 47867191 is about 363.0886284463.

The spelling of 47867191 in words is "forty-seven million, eight hundred sixty-seven thousand, one hundred ninety-one".