491527 has 2 divisors, whose sum is σ = 491528.
Its totient is φ = 491526.
The previous prime is 491503. The next prime is 491531. The reversal of 491527 is 725194.
It is a happy number.
491527 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 491527 - 211 = 489479 is a prime.
It is a zygodrome in base 2.
It is a junction number, because it is equal to n+sod(n) for n = 491495 and 491504.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (491537) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245763 + 245764.
It is an arithmetic number, because the mean of its divisors is an integer number (245764).
2491527 is an apocalyptic number.
491527 is a deficient number, since it is larger than the sum of its proper divisors (1).
491527 is an equidigital number, since it uses as much as digits as its factorization.
491527 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2520, while the sum is 28.
The square root of 491527 is about 701.0898658517.
The cubic root of 491527 is about 78.9191610184.
The spelling of 491527 in words is "four hundred ninety-one thousand, five hundred twenty-seven".