3727891632 has 20 divisors (see below), whose sum is σ = 9630386840. Its totient is φ = 1242630528.

The previous prime is 3727891619. The next prime is 3727891633. The reversal of 3727891632 is 2361987273.

3727891632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 77664409 = 3727891632 / (3 + 7 + 2 + 7 + 8 + 9 + 1 + 6 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (3727891633) 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, 38832157 + ... + 38832252.

It is an arithmetic number, because the mean of its divisors is an integer number (481519342).

Almost surely, 2^3727891632 is an apocalyptic number.

It is an amenable number.

3727891632 is an abundant number, since it is smaller than the sum of its proper divisors (5902495208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3727891632 is a wasteful number, since it uses less digits than its factorization.

3727891632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77664420 (or 77664414 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 3727891632 is about 61056.4626554798. The cubic root of 3727891632 is about 1550.5570848047.

The spelling of 3727891632 in words is "three billion, seven hundred twenty-seven million, eight hundred ninety-one thousand, six hundred thirty-two".