2949896687 has 4 divisors (see below), whose sum is σ = 2956556040. Its totient is φ = 2943237336.

The previous prime is 2949896647. The next prime is 2949896689. The reversal of 2949896687 is 7866989492.

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 2949896687 - 2⁸ = 2949896431 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 (2949896689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3329012 + ... + 3329897.

It is an arithmetic number, because the mean of its divisors is an integer number (739139010).

Almost surely, 2^2949896687 is an apocalyptic number.

2949896687 is a deficient number, since it is larger than the sum of its proper divisors (6659353).

2949896687 is an equidigital number, since it uses as much as digits as its factorization.

2949896687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659352.

The product of its digits is 94058496, while the sum is 68.

The square root of 2949896687 is about 54312.9513744190. The cubic root of 2949896687 is about 1434.1753993705.

The spelling of 2949896687 in words is "two billion, nine hundred forty-nine million, eight hundred ninety-six thousand, six hundred eighty-seven".