498687867 has 8 divisors (see below), whose sum is σ = 738796880. Its totient is φ = 332458560.

The previous prime is 498687841. The next prime is 498687923. The reversal of 498687867 is 768786894.

498687867 is a `hidden beast` number, since 498 + 6 + 87 + 8 + 67 = 666.

It is not a de Polignac number, because 498687867 - 2¹¹ = 498685819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498667867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9234934 + ... + 9234987.

It is an arithmetic number, because the mean of its divisors is an integer number (92349610).

Almost surely, 2^498687867 is an apocalyptic number.

498687867 is a deficient number, since it is larger than the sum of its proper divisors (240109013).

498687867 is a wasteful number, since it uses less digits than its factorization.

498687867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18469930 (or 18469924 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The square root of 498687867 is about 22331.3203147508. The cubic root of 498687867 is about 793.0056239917.

The spelling of 498687867 in words is "four hundred ninety-eight million, six hundred eighty-seven thousand, eight hundred sixty-seven".