491092797 has 16 divisors (see below), whose sum is σ = 708713600. Its totient is φ = 300687552.

The previous prime is 491092783. The next prime is 491092831. The reversal of 491092797 is 797290194.

It is a happy number.

It is not a de Polignac number, because 491092797 - 2⁶ = 491092733 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 (491092727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23878 + ... + 39399.

It is an arithmetic number, because the mean of its divisors is an integer number (44294600).

Almost surely, 2^491092797 is an apocalyptic number.

It is an amenable number.

491092797 is a deficient number, since it is larger than the sum of its proper divisors (217620803).

491092797 is a wasteful number, since it uses less digits than its factorization.

491092797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63492.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 491092797 is about 22160.6136422257. The cubic root of 491092797 is about 788.9591574965.

The spelling of 491092797 in words is "four hundred ninety-one million, ninety-two thousand, seven hundred ninety-seven".