3627397138 has 4 divisors (see below), whose sum is σ = 5441095710. Its totient is φ = 1813698568.

The previous prime is 3627397129. The next prime is 3627397181. The reversal of 3627397138 is 8317937263.

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

It can be written as a sum of positive squares in only one way, i.e., 3153159409 + 474237729 = 56153^2 + 21777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3627397091 and 3627397100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906849283 + ... + 906849286.

Almost surely, 2^3627397138 is an apocalyptic number.

3627397138 is a deficient number, since it is larger than the sum of its proper divisors (1813698572).

3627397138 is a wasteful number, since it uses less digits than its factorization.

3627397138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813698571.

The product of its digits is 1143072, while the sum is 49.

The square root of 3627397138 is about 60227.8767515509. The cubic root of 3627397138 is about 1536.4969482276.

The spelling of 3627397138 in words is "three billion, six hundred twenty-seven million, three hundred ninety-seven thousand, one hundred thirty-eight".