4897389639 has 8 divisors (see below), whose sum is σ = 6553427440. Its totient is φ = 3253139136.

The previous prime is 4897389619. The next prime is 4897389659. The reversal of 4897389639 is 9369837984.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4897389619) and next prime (4897389659).

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

It is not a de Polignac number, because 4897389639 - 2⁹ = 4897389127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4897389639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4897389619) 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, 2945854 + ... + 2947515.

It is an arithmetic number, because the mean of its divisors is an integer number (819178430).

Almost surely, 2^4897389639 is an apocalyptic number.

4897389639 is a deficient number, since it is larger than the sum of its proper divisors (1656037801).

4897389639 is a wasteful number, since it uses less digits than its factorization.

4897389639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893649.

The product of its digits is 70543872, while the sum is 66.

The square root of 4897389639 is about 69981.3520803935. The cubic root of 4897389639 is about 1698.1975866802.

The spelling of 4897389639 in words is "four billion, eight hundred ninety-seven million, three hundred eighty-nine thousand, six hundred thirty-nine".