3621794971 has 4 divisors (see below), whose sum is σ = 3834841752. Its totient is φ = 3408748192.

The previous prime is 3621794951. The next prime is 3621795059. The reversal of 3621794971 is 1794971263.

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

It is a cyclic number.

It is not a de Polignac number, because 3621794971 - 2¹⁵ = 3621762203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3621794951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106523365 + ... + 106523398.

It is an arithmetic number, because the mean of its divisors is an integer number (958710438).

Almost surely, 2^3621794971 is an apocalyptic number.

3621794971 is a deficient number, since it is larger than the sum of its proper divisors (213046781).

3621794971 is a wasteful number, since it uses less digits than its factorization.

3621794971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213046780.

The product of its digits is 571536, while the sum is 49.

The square root of 3621794971 is about 60181.3506910571. The cubic root of 3621794971 is about 1535.7055499477.

The spelling of 3621794971 in words is "three billion, six hundred twenty-one million, seven hundred ninety-four thousand, nine hundred seventy-one".