3976565 has 8 divisors (see below), whose sum is σ = 4783320. Its totient is φ = 3173632.

The previous prime is 3976547. The next prime is 3976573. The reversal of 3976565 is 5656793.

It can be written as a sum of positive squares in 4 ways, for example, as 131044 + 3845521 = 362^2 + 1961^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3976565 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 9⁵ + 7 + 6⁴ + 5⁹ + 6⁵ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441 + ... + 3729.

It is an arithmetic number, because the mean of its divisors is an integer number (597915).

Almost surely, 2^3976565 is an apocalyptic number.

It is an amenable number.

3976565 is a deficient number, since it is larger than the sum of its proper divisors (806755).

3976565 is a wasteful number, since it uses less digits than its factorization.

3976565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its digits is 170100, while the sum is 41.

The square root of 3976565 is about 1994.1326435320. The cubic root of 3976565 is about 158.4294916052.

The spelling of 3976565 in words is "three million, nine hundred seventy-six thousand, five hundred sixty-five".