3681879607 has 4 divisors (see below), whose sum is σ = 4207862416. Its totient is φ = 3155896800.

The previous prime is 3681879599. The next prime is 3681879613. The reversal of 3681879607 is 7069781863.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3681879607 - 2³ = 3681879599 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 (3681879637) 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, 262991394 + ... + 262991407.

It is an arithmetic number, because the mean of its divisors is an integer number (1051965604).

Almost surely, 2^3681879607 is an apocalyptic number.

3681879607 is a deficient number, since it is larger than the sum of its proper divisors (525982809).

3681879607 is an equidigital number, since it uses as much as digits as its factorization.

3681879607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525982808.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 3681879607 is about 60678.4937766257. The cubic root of 3681879607 is about 1544.1513347273.

The spelling of 3681879607 in words is "three billion, six hundred eighty-one million, eight hundred seventy-nine thousand, six hundred seven".