384279963 has 4 divisors (see below), whose sum is σ = 512373288. Its totient is φ = 256186640.

The previous prime is 384279947. The next prime is 384279983. The reversal of 384279963 is 369972483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369972483 = 3 ⋅123324161.

It is a cyclic number.

It is not a de Polignac number, because 384279963 - 2⁴ = 384279947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384279913) 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, 64046658 + ... + 64046663.

It is an arithmetic number, because the mean of its divisors is an integer number (128093322).

Almost surely, 2^384279963 is an apocalyptic number.

384279963 is a deficient number, since it is larger than the sum of its proper divisors (128093325).

384279963 is a wasteful number, since it uses less digits than its factorization.

384279963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128093324.

The product of its digits is 1959552, while the sum is 51.

The square root of 384279963 is about 19603.0600417384. The cubic root of 384279963 is about 727.0248353794.

The spelling of 384279963 in words is "three hundred eighty-four million, two hundred seventy-nine thousand, nine hundred sixty-three".