499340851 has 2 divisors, whose sum is σ = 499340852. Its totient is φ = 499340850.

The previous prime is 499340801. The next prime is 499340861. The reversal of 499340851 is 158043994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499340851 - 2⁹ = 499340339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499340798 and 499340807.

It is not a weakly prime, because it can be changed into another prime (499340801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249670425 + 249670426.

It is an arithmetic number, because the mean of its divisors is an integer number (249670426).

Almost surely, 2^499340851 is an apocalyptic number.

499340851 is a deficient number, since it is larger than the sum of its proper divisors (1).

499340851 is an equidigital number, since it uses as much as digits as its factorization.

499340851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 499340851 is about 22345.9358944753. The cubic root of 499340851 is about 793.3515946687.

The spelling of 499340851 in words is "four hundred ninety-nine million, three hundred forty thousand, eight hundred fifty-one".