3663769 has 4 divisors (see below), whose sum is σ = 3672244. Its totient is φ = 3655296.

The previous prime is 3663767. The next prime is 3663811. The reversal of 3663769 is 9673663.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2689600 + 974169 = 1640^2 + 987^2 .

It is a cyclic number.

It is not a de Polignac number, because 3663769 - 2¹ = 3663767 is a prime.

It is a super-2 number, since 2×3663769² = 26846406570722, which contains 22 as substring.

It is a Duffinian number.

3663769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3663763) 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, 3552 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (918061).

Almost surely, 2^3663769 is an apocalyptic number.

It is an amenable number.

3663769 is a deficient number, since it is larger than the sum of its proper divisors (8475).

3663769 is an equidigital number, since it uses as much as digits as its factorization.

3663769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474.

The product of its digits is 122472, while the sum is 40.

The square root of 3663769 is about 1914.0974374362. The cubic root of 3663769 is about 154.1615356786.

The spelling of 3663769 in words is "three million, six hundred sixty-three thousand, seven hundred sixty-nine".