3863221901 has 16 divisors (see below), whose sum is σ = 4848396288. Its totient is φ = 2990358000.

The previous prime is 3863221877. The next prime is 3863221907. The reversal of 3863221901 is 1091223683.

It is a de Polignac number, because none of the positive numbers 2^k-3863221901 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863221907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154505 + ... + 177758.

It is an arithmetic number, because the mean of its divisors is an integer number (303024768).

Almost surely, 2^3863221901 is an apocalyptic number.

It is an amenable number.

3863221901 is a deficient number, since it is larger than the sum of its proper divisors (985174387).

3863221901 is a wasteful number, since it uses less digits than its factorization.

3863221901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332432.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3863221901 is about 62154.8220253264. The cubic root of 3863221901 is about 1569.0973351196.

The spelling of 3863221901 in words is "three billion, eight hundred sixty-three million, two hundred twenty-one thousand, nine hundred one".