499908623 has 2 divisors, whose sum is σ = 499908624. Its totient is φ = 499908622.

The previous prime is 499908589. The next prime is 499908637. The reversal of 499908623 is 326809994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499908623 - 2¹² = 499904527 is a prime.

It is a super-2 number, since 2×499908623² = 499817262699512258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499908323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249954311 + 249954312.

It is an arithmetic number, because the mean of its divisors is an integer number (249954312).

Almost surely, 2^499908623 is an apocalyptic number.

499908623 is a deficient number, since it is larger than the sum of its proper divisors (1).

499908623 is an equidigital number, since it uses as much as digits as its factorization.

499908623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 499908623 is about 22358.6364298005. The cubic root of 499908623 is about 793.6521723897.

The spelling of 499908623 in words is "four hundred ninety-nine million, nine hundred eight thousand, six hundred twenty-three".