3654491 has 4 divisors (see below), whose sum is σ = 3661032. Its totient is φ = 3647952.

The previous prime is 3654487. The next prime is 3654503. The reversal of 3654491 is 1944563.

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

It is a cyclic number.

It is not a de Polignac number, because 3654491 - 2² = 3654487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3654421) 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, 2345 + ... + 3578.

It is an arithmetic number, because the mean of its divisors is an integer number (915258).

Almost surely, 2^3654491 is an apocalyptic number.

3654491 is a deficient number, since it is larger than the sum of its proper divisors (6541).

3654491 is an equidigital number, since it uses as much as digits as its factorization.

3654491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540.

The product of its digits is 12960, while the sum is 32.

The square root of 3654491 is about 1911.6723045543. The cubic root of 3654491 is about 154.0312945903.

The spelling of 3654491 in words is "three million, six hundred fifty-four thousand, four hundred ninety-one".