6297297649 has 4 divisors (see below), whose sum is σ = 6300238336. Its totient is φ = 6294356964.

The previous prime is 6297297631. The next prime is 6297297653. The reversal of 6297297649 is 9467927926.

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 6297297649 - 2⁹ = 6297297137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6297297659) 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, 1467129 + ... + 1471414.

It is an arithmetic number, because the mean of its divisors is an integer number (1575059584).

Almost surely, 2^6297297649 is an apocalyptic number.

It is an amenable number.

6297297649 is a deficient number, since it is larger than the sum of its proper divisors (2940687).

6297297649 is a wasteful number, since it uses less digits than its factorization.

6297297649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940686.

The product of its digits is 20575296, while the sum is 61.

The square root of 6297297649 is about 79355.5142948491. The cubic root of 6297297649 is about 1846.6506379761.

The spelling of 6297297649 in words is "six billion, two hundred ninety-seven million, two hundred ninety-seven thousand, six hundred forty-nine".