508769969 has 2 divisors, whose sum is σ = 508769970. Its totient is φ = 508769968.

The previous prime is 508769941. The next prime is 508769977. The reversal of 508769969 is 969967805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278489344 + 230280625 = 16688^2 + 15175^2 .

It is a cyclic number.

It is not a de Polignac number, because 508769969 - 2¹⁶ = 508704433 is a prime.

It is a super-2 number, since 2×508769969² = 517693762712521922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (508769909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254384984 + 254384985.

It is an arithmetic number, because the mean of its divisors is an integer number (254384985).

Almost surely, 2^508769969 is an apocalyptic number.

It is an amenable number.

508769969 is a deficient number, since it is larger than the sum of its proper divisors (1).

508769969 is an equidigital number, since it uses as much as digits as its factorization.

508769969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The square root of 508769969 is about 22555.9297968406. The cubic root of 508769969 is about 798.3141420367.

The spelling of 508769969 in words is "five hundred eight million, seven hundred sixty-nine thousand, nine hundred sixty-nine".