3646091 has 4 divisors (see below), whose sum is σ = 3744672. Its totient is φ = 3547512.

The previous prime is 3646079. The next prime is 3646103. The reversal of 3646091 is 1906463.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3646079) and next prime (3646103).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3646091 is a prime.

It is a Duffinian number.

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, 49235 + ... + 49308.

It is an arithmetic number, because the mean of its divisors is an integer number (936168).

Almost surely, 2^3646091 is an apocalyptic number.

3646091 is a deficient number, since it is larger than the sum of its proper divisors (98581).

3646091 is an equidigital number, since it uses as much as digits as its factorization.

3646091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98580.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3646091 is about 1909.4740113445. The cubic root of 3646091 is about 153.9131882680.

The spelling of 3646091 in words is "three million, six hundred forty-six thousand, ninety-one".