3727969 has 6 divisors (see below), whose sum is σ = 4336674. Its totient is φ = 3195360.

The previous prime is 3727961. The next prime is 3727991. The reversal of 3727969 is 9697273.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 1587600 = 1463^2 + 1260^2 .

It is not a de Polignac number, because 3727969 - 2³ = 3727961 is a prime.

It is a super-2 number, since 2×3727969² = 27795505729922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3727961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37992 + ... + 38089.

It is an arithmetic number, because the mean of its divisors is an integer number (722779).

Almost surely, 2^3727969 is an apocalyptic number.

It is an amenable number.

3727969 is a deficient number, since it is larger than the sum of its proper divisors (608705).

3727969 is an equidigital number, since it uses as much as digits as its factorization.

3727969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76095 (or 76088 counting only the distinct ones).

The product of its digits is 142884, while the sum is 43.

The square root of 3727969 is about 1930.7949140186. The cubic root of 3727969 is about 155.0567811393.

The spelling of 3727969 in words is "three million, seven hundred twenty-seven thousand, nine hundred sixty-nine".