3627631636 has 6 divisors (see below), whose sum is σ = 6348355370. Its totient is φ = 1813815816.

The previous prime is 3627631633. The next prime is 3627631643. The reversal of 3627631636 is 6361367263.

It can be written as a sum of positive squares in only one way, i.e., 3439118736 + 188512900 = 58644^2 + 13730^2 .

It is a super-2 number, since 2×3627631636² = 26319422573016072992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3627631592 and 3627631601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3627631633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453453951 + ... + 453453958.

Almost surely, 2^3627631636 is an apocalyptic number.

It is an amenable number.

3627631636 is a deficient number, since it is larger than the sum of its proper divisors (2720723734).

3627631636 is a wasteful number, since it uses less digits than its factorization.

3627631636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906907913 (or 906907911 counting only the distinct ones).

The product of its digits is 489888, while the sum is 43.

The square root of 3627631636 is about 60229.8234764141. The cubic root of 3627631636 is about 1536.5300571561.

Adding to 3627631636 its reverse (6361367263), we get a palindrome (9988998899).

The spelling of 3627631636 in words is "three billion, six hundred twenty-seven million, six hundred thirty-one thousand, six hundred thirty-six".