509089797 has 12 divisors (see below), whose sum is σ = 767324064. Its totient is φ = 324636840.

The previous prime is 509089753. The next prime is 509089807. The reversal of 509089797 is 797980905.

It is not a de Polignac number, because 509089797 - 2⁶ = 509089733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509089717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1229479 + ... + 1229892.

It is an arithmetic number, because the mean of its divisors is an integer number (63943672).

Almost surely, 2^509089797 is an apocalyptic number.

It is an amenable number.

509089797 is a deficient number, since it is larger than the sum of its proper divisors (258234267).

509089797 is a wasteful number, since it uses less digits than its factorization.

509089797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459400 (or 2459397 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 509089797 is about 22563.0183486164. The cubic root of 509089797 is about 798.4813883683.

The spelling of 509089797 in words is "five hundred nine million, eighty-nine thousand, seven hundred ninety-seven".