2947191 has 12 divisors (see below), whose sum is σ = 4255848. Its totient is φ = 1813344.

The previous prime is 2947169. The next prime is 2947199. The reversal of 2947191 is 1917492.

It is not a de Polignac number, because 2947191 - 2⁵ = 2947159 is a prime.

2947191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2400 + ... + 3413.

It is an arithmetic number, because the mean of its divisors is an integer number (354654).

2^2947191 is an apocalyptic number.

2947191 is a deficient number, since it is larger than the sum of its proper divisors (1308657).

2947191 is a wasteful number, since it uses less digits than its factorization.

2947191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842 (or 5829 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 2947191 is about 1716.7384774624. The cubic root of 2947191 is about 143.3736783249.

The spelling of 2947191 in words is "two million, nine hundred forty-seven thousand, one hundred ninety-one".