3688605472 has 24 divisors (see below), whose sum is σ = 7288955100. Its totient is φ = 1837442304.

The previous prime is 3688605457. The next prime is 3688605499. The reversal of 3688605472 is 2745068863.

It can be written as a sum of positive squares in 2 ways, for example, as 2784039696 + 904565776 = 52764^2 + 30076^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205647 + ... + 222862.

Almost surely, 2^3688605472 is an apocalyptic number.

3688605472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3688605472 is a deficient number, since it is larger than the sum of its proper divisors (3600349628).

3688605472 is a wasteful number, since it uses less digits than its factorization.

3688605472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428788 (or 428780 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 3688605472 is about 60733.8906377650. The cubic root of 3688605472 is about 1545.0910210547.

The spelling of 3688605472 in words is "three billion, six hundred eighty-eight million, six hundred five thousand, four hundred seventy-two".