501298969 has 2 divisors, whose sum is σ = 501298970. Its totient is φ = 501298968.

The previous prime is 501298949. The next prime is 501298981. The reversal of 501298969 is 969892105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474673369 + 26625600 = 21787^2 + 5160^2 .

It is a cyclic number.

It is not a de Polignac number, because 501298969 - 2⁵ = 501298937 is a prime.

It is a super-2 number, since 2×501298969² = 502601312640925922, which contains 22 as substring.

It is a Chen prime.

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 (501298909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250649484 + 250649485.

It is an arithmetic number, because the mean of its divisors is an integer number (250649485).

Almost surely, 2^501298969 is an apocalyptic number.

It is an amenable number.

501298969 is a deficient number, since it is larger than the sum of its proper divisors (1).

501298969 is an equidigital number, since it uses as much as digits as its factorization.

501298969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 501298969 is about 22389.7067644934. The cubic root of 501298969 is about 794.3872598820.

The spelling of 501298969 in words is "five hundred one million, two hundred ninety-eight thousand, nine hundred sixty-nine".