499993915 has 4 divisors (see below), whose sum is σ = 599992704. Its totient is φ = 399995128.

The previous prime is 499993903. The next prime is 499993927. The reversal of 499993915 is 519399994.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (499993903) and next prime (499993927).

It is a cyclic number.

It is not a de Polignac number, because 499993915 - 2⁵ = 499993883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499993915.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49999387 + ... + 49999396.

It is an arithmetic number, because the mean of its divisors is an integer number (149998176).

Almost surely, 2^499993915 is an apocalyptic number.

499993915 is a deficient number, since it is larger than the sum of its proper divisors (99998789).

499993915 is an equidigital number, since it uses as much as digits as its factorization.

499993915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99998788.

The product of its digits is 3542940, while the sum is 58.

The square root of 499993915 is about 22360.5437098475. The cubic root of 499993915 is about 793.6973061926.

The spelling of 499993915 in words is "four hundred ninety-nine million, nine hundred ninety-three thousand, nine hundred fifteen".