507898969 has 2 divisors, whose sum is σ = 507898970. Its totient is φ = 507898968.

The previous prime is 507898961. The next prime is 507898999. The reversal of 507898969 is 969898705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333975625 + 173923344 = 18275^2 + 13188^2 .

It is a cyclic number.

It is not a de Polignac number, because 507898969 - 2³ = 507898961 is a prime.

It is a super-2 number, since 2×507898969² = 515922725422525922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (507898961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253949484 + 253949485.

It is an arithmetic number, because the mean of its divisors is an integer number (253949485).

Almost surely, 2^507898969 is an apocalyptic number.

It is an amenable number.

507898969 is a deficient number, since it is larger than the sum of its proper divisors (1).

507898969 is an equidigital number, since it uses as much as digits as its factorization.

507898969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The square root of 507898969 is about 22536.6139648351. The cubic root of 507898969 is about 797.8583179682.

The spelling of 507898969 in words is "five hundred seven million, eight hundred ninety-eight thousand, nine hundred sixty-nine".