3646081 has 4 divisors (see below), whose sum is σ = 3838000. Its totient is φ = 3454164.

The previous prime is 3646079. The next prime is 3646103. The reversal of 3646081 is 1806463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3646081 - 2¹ = 3646079 is a prime.

It is a super-2 number, since 2×3646081² = 26587813317122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3646001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95931 + ... + 95968.

It is an arithmetic number, because the mean of its divisors is an integer number (959500).

Almost surely, 2^3646081 is an apocalyptic number.

It is an amenable number.

3646081 is a deficient number, since it is larger than the sum of its proper divisors (191919).

3646081 is a wasteful number, since it uses less digits than its factorization.

3646081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191918.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3646081 is about 1909.4713928205. The cubic root of 3646081 is about 153.9130475572.

The spelling of 3646081 in words is "three million, six hundred forty-six thousand, eighty-one".