2947042667 has 4 divisors (see below), whose sum is σ = 3120398136. Its totient is φ = 2773687200.

The previous prime is 2947042639. The next prime is 2947042673. The reversal of 2947042667 is 7662407492.

It is a happy number.

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 2947042667 - 2⁸ = 2947042411 is a prime.

It is a super-2 number, since 2×2947042667² = 17370120962236945778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2947042627) 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, 86677709 + ... + 86677742.

It is an arithmetic number, because the mean of its divisors is an integer number (780099534).

Almost surely, 2^2947042667 is an apocalyptic number.

2947042667 is a deficient number, since it is larger than the sum of its proper divisors (173355469).

2947042667 is a wasteful number, since it uses less digits than its factorization.

2947042667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173355468.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 2947042667 is about 54286.6711725816. The cubic root of 2947042667 is about 1433.7127293788.

The spelling of 2947042667 in words is "two billion, nine hundred forty-seven million, forty-two thousand, six hundred sixty-seven".