3909023887 has 8 divisors (see below), whose sum is σ = 4022675712. Its totient is φ = 3796642200.

The previous prime is 3909023879. The next prime is 3909023893. The reversal of 3909023887 is 7883209093.

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

It is a cyclic number.

It is not a de Polignac number, because 3909023887 - 2³ = 3909023879 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 3909023887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909023897) 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, 311289 + ... + 323602.

It is an arithmetic number, because the mean of its divisors is an integer number (502834464).

Almost surely, 2^3909023887 is an apocalyptic number.

3909023887 is a deficient number, since it is larger than the sum of its proper divisors (113651825).

3909023887 is a wasteful number, since it uses less digits than its factorization.

3909023887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635069.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 3909023887 is about 62522.1871578402. The cubic root of 3909023887 is about 1575.2740112158.

The spelling of 3909023887 in words is "three billion, nine hundred nine million, twenty-three thousand, eight hundred eighty-seven".