3809491 has 8 divisors (see below), whose sum is σ = 4446720. Its totient is φ = 3195528.

The previous prime is 3809489. The next prime is 3809501. The reversal of 3809491 is 1949083.

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

It is not a de Polignac number, because 3809491 - 2¹ = 3809489 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 (3809431) 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, 5461 + ... + 6118.

It is an arithmetic number, because the mean of its divisors is an integer number (555840).

Almost surely, 2^3809491 is an apocalyptic number.

3809491 is a deficient number, since it is larger than the sum of its proper divisors (637229).

3809491 is a wasteful number, since it uses less digits than its factorization.

3809491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11633.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3809491 is about 1951.7917409396. The cubic root of 3809491 is about 156.1788847577.

The spelling of 3809491 in words is "three million, eight hundred nine thousand, four hundred ninety-one".