3687667145 has 4 divisors (see below), whose sum is σ = 4425200580. Its totient is φ = 2950133712.

The previous prime is 3687667129. The next prime is 3687667157. The reversal of 3687667145 is 5417667863.

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

It can be written as a sum of positive squares in 2 ways, for example, as 630461881 + 3057205264 = 25109^2 + 55292^2 .

It is a cyclic number.

It is not a de Polignac number, because 3687667145 - 2⁴ = 3687667129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368766710 + ... + 368766719.

It is an arithmetic number, because the mean of its divisors is an integer number (1106300145).

Almost surely, 2^3687667145 is an apocalyptic number.

It is an amenable number.

3687667145 is a deficient number, since it is larger than the sum of its proper divisors (737533435).

3687667145 is an equidigital number, since it uses as much as digits as its factorization.

3687667145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737533434.

The product of its digits is 5080320, while the sum is 53.

The square root of 3687667145 is about 60726.1652420108. The cubic root of 3687667145 is about 1544.9599937973.

The spelling of 3687667145 in words is "three billion, six hundred eighty-seven million, six hundred sixty-seven thousand, one hundred forty-five".