3887722447 has 4 divisors (see below), whose sum is σ = 4443111376. Its totient is φ = 3332333520.

The previous prime is 3887722441. The next prime is 3887722457. The reversal of 3887722447 is 7442277883.

3887722447 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3887722447 - 2³ = 3887722439 is a prime.

It is a super-2 number, since 2×3887722447² = 30228771649815335618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3887722394 and 3887722403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887722441) 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, 277694454 + ... + 277694467.

It is an arithmetic number, because the mean of its divisors is an integer number (1110777844).

Almost surely, 2^3887722447 is an apocalyptic number.

3887722447 is a deficient number, since it is larger than the sum of its proper divisors (555388929).

3887722447 is an equidigital number, since it uses as much as digits as its factorization.

3887722447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555388928.

The product of its digits is 4214784, while the sum is 52.

The square root of 3887722447 is about 62351.6034036014. The cubic root of 3887722447 is about 1572.4074182154.

The spelling of 3887722447 in words is "three billion, eight hundred eighty-seven million, seven hundred twenty-two thousand, four hundred forty-seven".