494092591 has 2 divisors, whose sum is σ = 494092592. Its totient is φ = 494092590.

The previous prime is 494092583. The next prime is 494092603. The reversal of 494092591 is 195290494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494092591 - 2³ = 494092583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494092541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247046295 + 247046296.

It is an arithmetic number, because the mean of its divisors is an integer number (247046296).

Almost surely, 2^494092591 is an apocalyptic number.

494092591 is a deficient number, since it is larger than the sum of its proper divisors (1).

494092591 is an equidigital number, since it uses as much as digits as its factorization.

494092591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 494092591 is about 22228.1936063190. The cubic root of 494092591 is about 790.5623251645.

The spelling of 494092591 in words is "four hundred ninety-four million, ninety-two thousand, five hundred ninety-one".