499453807 has 2 divisors, whose sum is σ = 499453808. Its totient is φ = 499453806.

The previous prime is 499453793. The next prime is 499453847. The reversal of 499453807 is 708354994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499453807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499453847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249726903 + 249726904.

It is an arithmetic number, because the mean of its divisors is an integer number (249726904).

Almost surely, 2^499453807 is an apocalyptic number.

499453807 is a deficient number, since it is larger than the sum of its proper divisors (1).

499453807 is an equidigital number, since it uses as much as digits as its factorization.

499453807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 499453807 is about 22348.4631910116. The cubic root of 499453807 is about 793.4114115694.

The spelling of 499453807 in words is "four hundred ninety-nine million, four hundred fifty-three thousand, eight hundred seven".