3764838221 has 8 divisors (see below), whose sum is σ = 3790643520. Its totient is φ = 3739066272.

The previous prime is 3764838151. The next prime is 3764838223. The reversal of 3764838221 is 1228384673.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3764838221 - 2²² = 3760643917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3764838223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244025 + ... + 258993.

It is an arithmetic number, because the mean of its divisors is an integer number (473830440).

Almost surely, 2^3764838221 is an apocalyptic number.

It is an amenable number.

3764838221 is a deficient number, since it is larger than the sum of its proper divisors (25805299).

3764838221 is a wasteful number, since it uses less digits than its factorization.

3764838221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16675.

The product of its digits is 387072, while the sum is 44.

The square root of 3764838221 is about 61358.2775263452. The cubic root of 3764838221 is about 1555.6627029575.

The spelling of 3764838221 in words is "three billion, seven hundred sixty-four million, eight hundred thirty-eight thousand, two hundred twenty-one".