291083493 has 8 divisors (see below), whose sum is σ = 388241728. Its totient is φ = 193990464.

The previous prime is 291083483. The next prime is 291083497. The reversal of 291083493 is 394380192.

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

It is not a de Polignac number, because 291083493 - 2¹⁰ = 291082469 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 (291083497) 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, 4705 + ... + 24582.

It is an arithmetic number, because the mean of its divisors is an integer number (48530216).

Almost surely, 2^291083493 is an apocalyptic number.

It is an amenable number.

291083493 is a deficient number, since it is larger than the sum of its proper divisors (97158235).

291083493 is a wasteful number, since it uses less digits than its factorization.

291083493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32603.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 291083493 is about 17061.1691568896. The cubic root of 291083493 is about 662.7339099511.

The spelling of 291083493 in words is "two hundred ninety-one million, eighty-three thousand, four hundred ninety-three".