498987 has 8 divisors (see below), whose sum is σ = 739280. Its totient is φ = 332640.

The previous prime is 498977. The next prime is 498989. The reversal of 498987 is 789894.

It is not a de Polignac number, because 498987 - 2⁶ = 498923 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (498989) 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, 9214 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (92410).

2⁴⁹⁸⁹⁸⁷ is an apocalyptic number.

498987 is a deficient number, since it is larger than the sum of its proper divisors (240293).

498987 is a wasteful number, since it uses less digits than its factorization.

498987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490 (or 18484 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 498987 is about 706.3901188437. The cubic root of 498987 is about 79.3164151167.

It can be divided in two parts, 498 and 987, that added together give a triangular number (1485 = T₅₄).

The spelling of 498987 in words is "four hundred ninety-eight thousand, nine hundred eighty-seven".