2643632297 has 4 divisors (see below), whose sum is σ = 2654693760. Its totient is φ = 2632570836.

The previous prime is 2643632267. The next prime is 2643632309. The reversal of 2643632297 is 7922363462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2643632297 - 2⁸ = 2643632041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643632227) 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, 5530373 + ... + 5530850.

It is an arithmetic number, because the mean of its divisors is an integer number (663673440).

Almost surely, 2^2643632297 is an apocalyptic number.

It is an amenable number.

2643632297 is a deficient number, since it is larger than the sum of its proper divisors (11061463).

2643632297 is a wasteful number, since it uses less digits than its factorization.

2643632297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11061462.

The product of its digits is 653184, while the sum is 44.

The square root of 2643632297 is about 51416.2649071284. The cubic root of 2643632297 is about 1382.7182118251.

The spelling of 2643632297 in words is "two billion, six hundred forty-three million, six hundred thirty-two thousand, two hundred ninety-seven".