499896869 has 2 divisors, whose sum is σ = 499896870. Its totient is φ = 499896868.

The previous prime is 499896853. The next prime is 499896877. The reversal of 499896869 is 968698994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428697025 + 71199844 = 20705^2 + 8438^2 .

It is a cyclic number.

It is not a de Polignac number, because 499896869 - 2⁴ = 499896853 is a prime.

It is a super-2 number, since 2×499896869² = 499793759272006322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 499896799 and 499896808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499896889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249948434 + 249948435.

It is an arithmetic number, because the mean of its divisors is an integer number (249948435).

Almost surely, 2^499896869 is an apocalyptic number.

It is an amenable number.

499896869 is a deficient number, since it is larger than the sum of its proper divisors (1).

499896869 is an equidigital number, since it uses as much as digits as its factorization.

499896869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60466176, while the sum is 68.

The square root of 499896869 is about 22358.3735768056. The cubic root of 499896869 is about 793.6459521458.

The spelling of 499896869 in words is "four hundred ninety-nine million, eight hundred ninety-six thousand, eight hundred sixty-nine".