4165690 has 16 divisors (see below), whose sum is σ = 7622280. Its totient is φ = 1638720.

The previous prime is 4165661. The next prime is 4165699. The reversal of 4165690 is 965614.

It can be written as a sum of positive squares in 4 ways, for example, as 2253001 + 1912689 = 1501^2 + 1383^2 .

It is a super-2 number, since 2×4165690² = 34705946352200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4165699) 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, 2805 + ... + 4024.

Almost surely, 2^4165690 is an apocalyptic number.

4165690 is a deficient number, since it is larger than the sum of its proper divisors (3456590).

4165690 is a wasteful number, since it uses less digits than its factorization.

4165690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4165690 is about 2041.0022048004. The cubic root of 4165690 is about 160.9023236345.

The spelling of 4165690 in words is "four million, one hundred sixty-five thousand, six hundred ninety".