4385399639 has 4 divisors (see below), whose sum is σ = 4403596560. Its totient is φ = 4367202720.

The previous prime is 4385399621. The next prime is 4385399687. The reversal of 4385399639 is 9369935834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4385399639 - 2⁸ = 4385399383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4385392639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9098099 + ... + 9098580.

It is an arithmetic number, because the mean of its divisors is an integer number (1100899140).

Almost surely, 2^4385399639 is an apocalyptic number.

4385399639 is a deficient number, since it is larger than the sum of its proper divisors (18196921).

4385399639 is a wasteful number, since it uses less digits than its factorization.

4385399639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18196920.

The product of its digits is 18895680, while the sum is 59.

The square root of 4385399639 is about 66222.3499960550. The cubic root of 4385399639 is about 1636.8280499554.

The spelling of 4385399639 in words is "four billion, three hundred eighty-five million, three hundred ninety-nine thousand, six hundred thirty-nine".