2947861967 has 4 divisors (see below), whose sum is σ = 2948739816. Its totient is φ = 2946984120.

The previous prime is 2947861937. The next prime is 2947861981. The reversal of 2947861967 is 7691687492.

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 2947861967 - 2²⁸ = 2679426511 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 (2947861927) 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, 433868 + ... + 440609.

It is an arithmetic number, because the mean of its divisors is an integer number (737184954).

Almost surely, 2^2947861967 is an apocalyptic number.

2947861967 is a deficient number, since it is larger than the sum of its proper divisors (877849).

2947861967 is an equidigital number, since it uses as much as digits as its factorization.

2947861967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877848.

The product of its digits is 9144576, while the sum is 59.

The square root of 2947861967 is about 54294.2166993871. The cubic root of 2947861967 is about 1433.8455780383.

The spelling of 2947861967 in words is "two billion, nine hundred forty-seven million, eight hundred sixty-one thousand, nine hundred sixty-seven".