384089847 has 4 divisors (see below), whose sum is σ = 512119800. Its totient is φ = 256059896.

The previous prime is 384089843. The next prime is 384089861. The reversal of 384089847 is 748980483.

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 384089847 - 2² = 384089843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384089847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384089843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64014972 + ... + 64014977.

It is an arithmetic number, because the mean of its divisors is an integer number (128029950).

Almost surely, 2^384089847 is an apocalyptic number.

384089847 is a deficient number, since it is larger than the sum of its proper divisors (128029953).

384089847 is a wasteful number, since it uses less digits than its factorization.

384089847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128029952.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 384089847 is about 19598.2103009433. The cubic root of 384089847 is about 726.9049211962.

The spelling of 384089847 in words is "three hundred eighty-four million, eighty-nine thousand, eight hundred forty-seven".