3780536647 has 4 divisors (see below), whose sum is σ = 3979512280. Its totient is φ = 3581561016.

The previous prime is 3780536623. The next prime is 3780536663. The reversal of 3780536647 is 7466350873.

It is a happy number.

3780536647 is digitally balanced in base 2 and base 3, because in such bases 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 3780536647 - 2²⁷ = 3646318919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3780536647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780536677) 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, 99487788 + ... + 99487825.

It is an arithmetic number, because the mean of its divisors is an integer number (994878070).

Almost surely, 2^3780536647 is an apocalyptic number.

3780536647 is a deficient number, since it is larger than the sum of its proper divisors (198975633).

3780536647 is a wasteful number, since it uses less digits than its factorization.

3780536647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198975632.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The square root of 3780536647 is about 61486.0687229229. The cubic root of 3780536647 is about 1557.8219449607.

The spelling of 3780536647 in words is "three billion, seven hundred eighty million, five hundred thirty-six thousand, six hundred forty-seven".