499737851 has 4 divisors (see below), whose sum is σ = 499798104. Its totient is φ = 499677600.

The previous prime is 499737839. The next prime is 499737881. The reversal of 499737851 is 158737994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158737994 = 2 ⋅79368997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499737851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 499737793 and 499737802.

It is not an unprimeable number, because it can be changed into a prime (499737881) 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, 15230 + ... + 35091.

It is an arithmetic number, because the mean of its divisors is an integer number (124949526).

Almost surely, 2^499737851 is an apocalyptic number.

499737851 is a deficient number, since it is larger than the sum of its proper divisors (60253).

499737851 is an equidigital number, since it uses as much as digits as its factorization.

499737851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60252.

The product of its digits is 1905120, while the sum is 53.

The square root of 499737851 is about 22354.8171766177. The cubic root of 499737851 is about 793.5617898688.

The spelling of 499737851 in words is "four hundred ninety-nine million, seven hundred thirty-seven thousand, eight hundred fifty-one".