3769221 has 4 divisors (see below), whose sum is σ = 5025632. Its totient is φ = 2512812.

The previous prime is 3769193. The next prime is 3769229. The reversal of 3769221 is 1229673.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1229673 = 3 ⋅409891.

It is not a de Polignac number, because 3769221 - 2¹¹ = 3767173 is a prime.

It is a D-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 (3769229) 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, 628201 + ... + 628206.

It is an arithmetic number, because the mean of its divisors is an integer number (1256408).

Almost surely, 2^3769221 is an apocalyptic number.

It is an amenable number.

3769221 is a deficient number, since it is larger than the sum of its proper divisors (1256411).

3769221 is a wasteful number, since it uses less digits than its factorization.

3769221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256410.

The product of its digits is 4536, while the sum is 30.

The square root of 3769221 is about 1941.4481708251. The cubic root of 3769221 is about 155.6266135863.

The spelling of 3769221 in words is "three million, seven hundred sixty-nine thousand, two hundred twenty-one".