3791903638 has 16 divisors (see below), whose sum is σ = 5768231616. Its totient is φ = 1869253960.

The previous prime is 3791903623. The next prime is 3791903641. The reversal of 3791903638 is 8363091973.

3791903638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3791903591 and 3791903600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58245 + ... + 104767.

It is an arithmetic number, because the mean of its divisors is an integer number (360514476).

Almost surely, 2^3791903638 is an apocalyptic number.

3791903638 is a deficient number, since it is larger than the sum of its proper divisors (1976327978).

3791903638 is a wasteful number, since it uses less digits than its factorization.

3791903638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47099.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 3791903638 is about 61578.4348453255. The cubic root of 3791903638 is about 1559.3816909166.

The spelling of 3791903638 in words is "three billion, seven hundred ninety-one million, nine hundred three thousand, six hundred thirty-eight".