491064527 has 2 divisors, whose sum is σ = 491064528. Its totient is φ = 491064526.

The previous prime is 491064487. The next prime is 491064593. The reversal of 491064527 is 725460194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491064527 - 2⁶ = 491064463 is a prime.

It is a super-2 number, since 2×491064527² = 482288739355467458, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491064127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245532263 + 245532264.

It is an arithmetic number, because the mean of its divisors is an integer number (245532264).

Almost surely, 2^491064527 is an apocalyptic number.

491064527 is a deficient number, since it is larger than the sum of its proper divisors (1).

491064527 is an equidigital number, since it uses as much as digits as its factorization.

491064527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 491064527 is about 22159.9757896980. The cubic root of 491064527 is about 788.9440182645.

The spelling of 491064527 in words is "four hundred ninety-one million, sixty-four thousand, five hundred twenty-seven".