638076383 has 8 divisors (see below), whose sum is σ = 744112800. Its totient is φ = 546922320.

The previous prime is 638076347. The next prime is 638076389. The reversal of 638076383 is 383670836.

It is not a de Polignac number, because 638076383 - 2⁶ = 638076319 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 (638076389) 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, 929798 + ... + 930483.

It is an arithmetic number, because the mean of its divisors is an integer number (93014100).

Almost surely, 2^638076383 is an apocalyptic number.

638076383 is a deficient number, since it is larger than the sum of its proper divisors (106036417).

638076383 is an equidigital number, since it uses as much as digits as its factorization.

638076383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860302 (or 1860288 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 638076383 is about 25260.1738513416. The cubic root of 638076383 is about 860.9096122093.

The spelling of 638076383 in words is "six hundred thirty-eight million, seventy-six thousand, three hundred eighty-three".