499758971 has 2 divisors, whose sum is σ = 499758972. Its totient is φ = 499758970.

The previous prime is 499758937. The next prime is 499758983. The reversal of 499758971 is 179857994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499758971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499758971.

It is not a weakly prime, because it can be changed into another prime (499758991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249879485 + 249879486.

It is an arithmetic number, because the mean of its divisors is an integer number (249879486).

Almost surely, 2^499758971 is an apocalyptic number.

499758971 is a deficient number, since it is larger than the sum of its proper divisors (1).

499758971 is an equidigital number, since it uses as much as digits as its factorization.

499758971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 59.

The square root of 499758971 is about 22355.2895530342. The cubic root of 499758971 is about 793.5729689226.

The spelling of 499758971 in words is "four hundred ninety-nine million, seven hundred fifty-eight thousand, nine hundred seventy-one".