3427638684 has 72 divisors (see below), whose sum is σ = 8600754960. Its totient is φ = 1061918208.

The previous prime is 3427638679. The next prime is 3427638707. The reversal of 3427638684 is 4868367243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222132 + ... + 237060.

It is an arithmetic number, because the mean of its divisors is an integer number (119454930).

Almost surely, 2^3427638684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3427638684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4300377480).

3427638684 is an abundant number, since it is smaller than the sum of its proper divisors (5173116276).

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

3427638684 is a wasteful number, since it uses less digits than its factorization.

3427638684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027 (or 15006 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The square root of 3427638684 is about 58546.0390120459. The cubic root of 3427638684 is about 1507.7581286707.

The spelling of 3427638684 in words is "three billion, four hundred twenty-seven million, six hundred thirty-eight thousand, six hundred eighty-four".