496086991 has 2 divisors, whose sum is σ = 496086992. Its totient is φ = 496086990.

The previous prime is 496086973. The next prime is 496087043. The reversal of 496086991 is 199680694.

It is an a-pointer prime, because the next prime (496087043) can be obtained adding 496086991 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 496086991 - 2¹⁷ = 495955919 is a prime.

It is a super-2 number, since 2×496086991² = 492204605278868162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (496086091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248043495 + 248043496.

It is an arithmetic number, because the mean of its divisors is an integer number (248043496).

Almost surely, 2^496086991 is an apocalyptic number.

496086991 is a deficient number, since it is larger than the sum of its proper divisors (1).

496086991 is an equidigital number, since it uses as much as digits as its factorization.

496086991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 496086991 is about 22273.0103712992. The cubic root of 496086991 is about 791.6245962402.

The spelling of 496086991 in words is "four hundred ninety-six million, eighty-six thousand, nine hundred ninety-one".