3654391 has 8 divisors (see below), whose sum is σ = 4019904. Its totient is φ = 3300960.

The previous prime is 3654389. The next prime is 3654397. The reversal of 3654391 is 1934563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3654391 - 2¹ = 3654389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654397) 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, 2380 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (502488).

Almost surely, 2^3654391 is an apocalyptic number.

3654391 is a deficient number, since it is larger than the sum of its proper divisors (365513).

3654391 is a wasteful number, since it uses less digits than its factorization.

3654391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041.

The product of its digits is 9720, while the sum is 31.

The square root of 3654391 is about 1911.6461492651. The cubic root of 3654391 is about 154.0298896276.

The spelling of 3654391 in words is "three million, six hundred fifty-four thousand, three hundred ninety-one".