3671893643 has 4 divisors (see below), whose sum is σ = 4005702168. Its totient is φ = 3338085120.

The previous prime is 3671893607. The next prime is 3671893681. The reversal of 3671893643 is 3463981763.

It is a happy number.

3671893643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3671893643 is a prime.

It is a super-2 number, since 2×3671893643² = 26965605851007622898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3671893591 and 3671893600.

It is not an unprimeable number, because it can be changed into a prime (3671893943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166904246 + ... + 166904267.

It is an arithmetic number, because the mean of its divisors is an integer number (1001425542).

Almost surely, 2^3671893643 is an apocalyptic number.

3671893643 is a deficient number, since it is larger than the sum of its proper divisors (333808525).

3671893643 is a wasteful number, since it uses less digits than its factorization.

3671893643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333808524.

The product of its digits is 1959552, while the sum is 50.

The square root of 3671893643 is about 60596.1520477992. The cubic root of 3671893643 is about 1542.7540591642.

The spelling of 3671893643 in words is "three billion, six hundred seventy-one million, eight hundred ninety-three thousand, six hundred forty-three".