47965191 has 4 divisors (see below), whose sum is σ = 63953592. Its totient is φ = 31976792.

The previous prime is 47965163. The next prime is 47965193. The reversal of 47965191 is 19156974.

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

It is a cyclic number.

It is not a de Polignac number, because 47965191 - 2¹¹ = 47963143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47965193) 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, 7994196 + ... + 7994201.

It is an arithmetic number, because the mean of its divisors is an integer number (15988398).

Almost surely, 2^47965191 is an apocalyptic number.

47965191 is a deficient number, since it is larger than the sum of its proper divisors (15988401).

47965191 is a wasteful number, since it uses less digits than its factorization.

47965191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988400.

The product of its digits is 68040, while the sum is 42.

The square root of 47965191 is about 6925.6906514802. The cubic root of 47965191 is about 363.3362471126.

The spelling of 47965191 in words is "forty-seven million, nine hundred sixty-five thousand, one hundred ninety-one".