2940696647 has 4 divisors (see below), whose sum is σ = 3360796176. Its totient is φ = 2520597120.

The previous prime is 2940696641. The next prime is 2940696691. The reversal of 2940696647 is 7466960492.

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 2940696647 - 2¹⁰ = 2940695623 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 (2940696641) 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, 210049754 + ... + 210049767.

It is an arithmetic number, because the mean of its divisors is an integer number (840199044).

Almost surely, 2^2940696647 is an apocalyptic number.

2940696647 is a deficient number, since it is larger than the sum of its proper divisors (420099529).

2940696647 is an equidigital number, since it uses as much as digits as its factorization.

2940696647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420099528.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 2940696647 is about 54228.1905193231. The cubic root of 2940696647 is about 1432.6828938034.

The spelling of 2940696647 in words is "two billion, nine hundred forty million, six hundred ninety-six thousand, six hundred forty-seven".