499011857 has 4 divisors (see below), whose sum is σ = 499056960. Its totient is φ = 498966756.

The previous prime is 499011833. The next prime is 499011917. The reversal of 499011857 is 758110994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 758110994 = 2 ⋅379055497.

It is a cyclic number.

It is not a de Polignac number, because 499011857 - 2¹⁴ = 498995473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499011827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644 + ... + 32282.

It is an arithmetic number, because the mean of its divisors is an integer number (124764240).

Almost surely, 2^499011857 is an apocalyptic number.

It is an amenable number.

499011857 is a deficient number, since it is larger than the sum of its proper divisors (45103).

499011857 is a wasteful number, since it uses less digits than its factorization.

499011857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45102.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 499011857 is about 22338.5732982212. The cubic root of 499011857 is about 793.1773214194.

The spelling of 499011857 in words is "four hundred ninety-nine million, eleven thousand, eight hundred fifty-seven".