1491393 has 8 divisors (see below), whose sum is σ = 2105568. Its totient is φ = 935744.

The previous prime is 1491377. The next prime is 1491401. The reversal of 1491393 is 3931941.

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

It is a cyclic number.

It is not a de Polignac number, because 1491393 - 2⁴ = 1491377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1491393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491493) 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, 14571 + ... + 14672.

It is an arithmetic number, because the mean of its divisors is an integer number (263196).

2^1491393 is an apocalyptic number.

It is an amenable number.

1491393 is a deficient number, since it is larger than the sum of its proper divisors (614175).

1491393 is a wasteful number, since it uses less digits than its factorization.

1491393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29263.

The product of its digits is 2916, while the sum is 30.

The square root of 1491393 is about 1221.2260233061. The cubic root of 1491393 is about 114.2520584677.

The spelling of 1491393 in words is "one million, four hundred ninety-one thousand, three hundred ninety-three".