4639688997 has 8 divisors (see below), whose sum is σ = 6385808640. Its totient is φ = 2993347680.

The previous prime is 4639688939. The next prime is 4639689001. The reversal of 4639688997 is 7998869364.

4639688997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4639688997 - 2¹¹ = 4639686949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639688797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24944472 + ... + 24944657.

It is an arithmetic number, because the mean of its divisors is an integer number (798226080).

Almost surely, 2^4639688997 is an apocalyptic number.

It is an amenable number.

4639688997 is a deficient number, since it is larger than the sum of its proper divisors (1746119643).

4639688997 is a wasteful number, since it uses less digits than its factorization.

4639688997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49889163.

The product of its digits is 141087744, while the sum is 69.

The square root of 4639688997 is about 68115.2625848275. The cubic root of 4639688997 is about 1667.8729175158.

The spelling of 4639688997 in words is "four billion, six hundred thirty-nine million, six hundred eighty-eight thousand, nine hundred ninety-seven".