498742991 has 8 divisors (see below), whose sum is σ = 539317440. Its totient is φ = 459417088.

The previous prime is 498742969. The next prime is 498743009. The reversal of 498742991 is 199247894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 498742991 - 2⁶ = 498742927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498742091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311306 + ... + 312903.

It is an arithmetic number, because the mean of its divisors is an integer number (67414680).

Almost surely, 2^498742991 is an apocalyptic number.

498742991 is a deficient number, since it is larger than the sum of its proper divisors (40574449).

498742991 is a wasteful number, since it uses less digits than its factorization.

498742991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624273.

The product of its digits is 1306368, while the sum is 53.

The square root of 498742991 is about 22332.5545112958. The cubic root of 498742991 is about 793.0348420219.

The spelling of 498742991 in words is "four hundred ninety-eight million, seven hundred forty-two thousand, nine hundred ninety-one".