2956694621 has 4 divisors (see below), whose sum is σ = 3130617852. Its totient is φ = 2782771392.

The previous prime is 2956694617. The next prime is 2956694639. The reversal of 2956694621 is 1264966592.

It is a happy number.

2956694621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2765287396 + 191407225 = 52586^2 + 13835^2 .

It is a cyclic number.

It is not a de Polignac number, because 2956694621 - 2² = 2956694617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2956694621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2956624621) 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, 86961590 + ... + 86961623.

It is an arithmetic number, because the mean of its divisors is an integer number (782654463).

Almost surely, 2^2956694621 is an apocalyptic number.

It is an amenable number.

2956694621 is a deficient number, since it is larger than the sum of its proper divisors (173923231).

2956694621 is a wasteful number, since it uses less digits than its factorization.

2956694621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173923230.

The product of its digits is 1399680, while the sum is 50.

The square root of 2956694621 is about 54375.4965126756. The cubic root of 2956694621 is about 1435.2762232572.

The spelling of 2956694621 in words is "two billion, nine hundred fifty-six million, six hundred ninety-four thousand, six hundred twenty-one".