3690081 has 6 divisors (see below), whose sum is σ = 5330130. Its totient is φ = 2460048.

The previous prime is 3690079. The next prime is 3690091. The reversal of 3690081 is 1800963.

It can be written as a sum of positive squares in only one way, i.e., 3549456 + 140625 = 1884^2 + 375^2 .

It is not a de Polignac number, because 3690081 - 2¹ = 3690079 is a prime.

It is a super-2 number, since 2×3690081² = 27233395573122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3690031) 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, 204996 + ... + 205013.

It is an arithmetic number, because the mean of its divisors is an integer number (888355).

Almost surely, 2^3690081 is an apocalyptic number.

It is an amenable number.

3690081 is a deficient number, since it is larger than the sum of its proper divisors (1640049).

3690081 is a wasteful number, since it uses less digits than its factorization.

3690081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410015 (or 410012 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3690081 is about 1920.9583545720. The cubic root of 3690081 is about 154.5297017707.

The spelling of 3690081 in words is "three million, six hundred ninety thousand, eighty-one".