4086965 has 8 divisors (see below), whose sum is σ = 4953528. Its totient is φ = 3236800.

The previous prime is 4086949. The next prime is 4086967. The reversal of 4086965 is 5696804.

It can be written as a sum of positive squares in 4 ways, for example, as 1240996 + 2845969 = 1114^2 + 1687^2 .

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

It is not a de Polignac number, because 4086965 - 2⁴ = 4086949 is a prime.

It is a super-4 number, since 4×4086965⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4086967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542 + ... + 4551.

It is an arithmetic number, because the mean of its divisors is an integer number (619191).

Almost surely, 2^4086965 is an apocalyptic number.

It is an amenable number.

4086965 is a deficient number, since it is larger than the sum of its proper divisors (866563).

4086965 is a wasteful number, since it uses less digits than its factorization.

4086965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 4086965 is about 2021.6243469052. The cubic root of 4086965 is about 159.8822701651.

The spelling of 4086965 in words is "four million, eighty-six thousand, nine hundred sixty-five".