6649002897 has 8 divisors (see below), whose sum is σ = 9104941056. Its totient is φ = 4312866672.

The previous prime is 6649002887. The next prime is 6649002907. The reversal of 6649002897 is 7982009466.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6649002887) and next prime (6649002907).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6649002897 - 2⁴ = 6649002881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6649002887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29950353 + ... + 29950574.

It is an arithmetic number, because the mean of its divisors is an integer number (1138117632).

Almost surely, 2^6649002897 is an apocalyptic number.

It is an amenable number.

6649002897 is a deficient number, since it is larger than the sum of its proper divisors (2455938159).

6649002897 is a wasteful number, since it uses less digits than its factorization.

6649002897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59900967.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 6649002897 is about 81541.4182915652. The cubic root of 6649002897 is about 1880.4083631736.

The spelling of 6649002897 in words is "six billion, six hundred forty-nine million, two thousand, eight hundred ninety-seven".