499721107 has 2 divisors, whose sum is σ = 499721108. Its totient is φ = 499721106.

The previous prime is 499721087. The next prime is 499721113. The reversal of 499721107 is 701127994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499721107 - 2⁷ = 499720979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499721107.

It is not a weakly prime, because it can be changed into another prime (499724107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249860553 + 249860554.

It is an arithmetic number, because the mean of its divisors is an integer number (249860554).

Almost surely, 2^499721107 is an apocalyptic number.

499721107 is a deficient number, since it is larger than the sum of its proper divisors (1).

499721107 is an equidigital number, since it uses as much as digits as its factorization.

499721107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 499721107 is about 22354.4426680694. The cubic root of 499721107 is about 793.5529268573.

The spelling of 499721107 in words is "four hundred ninety-nine million, seven hundred twenty-one thousand, one hundred seven".