3791409 has 4 divisors (see below), whose sum is σ = 5055216. Its totient is φ = 2527604.

The previous prime is 3791387. The next prime is 3791419. The reversal of 3791409 is 9041973.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9041973 = 3 ⋅3013991.

It is a cyclic number.

It is not a de Polignac number, because 3791409 - 2⁵ = 3791377 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3791409.

It is not an unprimeable number, because it can be changed into a prime (3791419) 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, 631899 + ... + 631904.

It is an arithmetic number, because the mean of its divisors is an integer number (1263804).

Almost surely, 2^3791409 is an apocalyptic number.

It is an amenable number.

3791409 is a deficient number, since it is larger than the sum of its proper divisors (1263807).

3791409 is a wasteful number, since it uses less digits than its factorization.

3791409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263806.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 3791409 is about 1947.1540771084. The cubic root of 3791409 is about 155.9313883024.

The spelling of 3791409 in words is "three million, seven hundred ninety-one thousand, four hundred nine".