6355239897 has 32 divisors (see below), whose sum is σ = 9046857600. Its totient is φ = 3954521088.

The previous prime is 6355239859. The next prime is 6355239901. The reversal of 6355239897 is 7989325536.

It is a happy number.

It is not a de Polignac number, because 6355239897 - 2¹⁰ = 6355238873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6355239697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3806979 + ... + 3808647.

It is an arithmetic number, because the mean of its divisors is an integer number (282714300).

Almost surely, 2^6355239897 is an apocalyptic number.

It is an amenable number.

6355239897 is a deficient number, since it is larger than the sum of its proper divisors (2691617703).

6355239897 is a wasteful number, since it uses less digits than its factorization.

6355239897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 12247200, while the sum is 57.

The square root of 6355239897 is about 79719.7585106729. The cubic root of 6355239897 is about 1852.2971121557.

The spelling of 6355239897 in words is "six billion, three hundred fifty-five million, two hundred thirty-nine thousand, eight hundred ninety-seven".