531827797 has 2 divisors, whose sum is σ = 531827798. Its totient is φ = 531827796.

The previous prime is 531827789. The next prime is 531827801. The reversal of 531827797 is 797728135.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487923921 + 43903876 = 22089^2 + 6626^2 .

It is a cyclic number.

It is not a de Polignac number, because 531827797 - 2³ = 531827789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531827797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531827767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265913898 + 265913899.

It is an arithmetic number, because the mean of its divisors is an integer number (265913899).

Almost surely, 2^531827797 is an apocalyptic number.

It is an amenable number.

531827797 is a deficient number, since it is larger than the sum of its proper divisors (1).

531827797 is an equidigital number, since it uses as much as digits as its factorization.

531827797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 49.

The square root of 531827797 is about 23061.3919137592. The cubic root of 531827797 is about 810.1964655782.

The spelling of 531827797 in words is "five hundred thirty-one million, eight hundred twenty-seven thousand, seven hundred ninety-seven".