3721769 has 4 divisors (see below), whose sum is σ = 3768960. Its totient is φ = 3674580.

The previous prime is 3721741. The next prime is 3721771. The reversal of 3721769 is 9671273.

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.

It is a cyclic number.

It is not a de Polignac number, because 3721769 - 2²⁰ = 2673193 is a prime.

It is a super-2 number, since 2×3721769² = 27703128978722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3721799) 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, 23477 + ... + 23634.

It is an arithmetic number, because the mean of its divisors is an integer number (942240).

Almost surely, 2^3721769 is an apocalyptic number.

It is an amenable number.

3721769 is a deficient number, since it is larger than the sum of its proper divisors (47191).

3721769 is an equidigital number, since it uses as much as digits as its factorization.

3721769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47190.

The product of its digits is 15876, while the sum is 35.

The square root of 3721769 is about 1929.1886895791. The cubic root of 3721769 is about 154.9707749270.

The spelling of 3721769 in words is "three million, seven hundred twenty-one thousand, seven hundred sixty-nine".