1947092671 has 12 divisors (see below), whose sum is σ = 2130294816. Its totient is φ = 1773428160.

The previous prime is 1947092657. The next prime is 1947092681. The reversal of 1947092671 is 1762907491.

It is not a de Polignac number, because 1947092671 - 2⁵ = 1947092639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947092681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43255 + ... + 75928.

It is an arithmetic number, because the mean of its divisors is an integer number (177524568).

Almost surely, 2^1947092671 is an apocalyptic number.

1947092671 is a deficient number, since it is larger than the sum of its proper divisors (183202145).

1947092671 is a wasteful number, since it uses less digits than its factorization.

1947092671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119262 (or 119231 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 1947092671 is about 44125.8730338562. The cubic root of 1947092671 is about 1248.7117759858.

The spelling of 1947092671 in words is "one billion, nine hundred forty-seven million, ninety-two thousand, six hundred seventy-one".