618498487 has 4 divisors (see below), whose sum is σ = 625950360. Its totient is φ = 611046616.

The previous prime is 618498479. The next prime is 618498493. The reversal of 618498487 is 784894816.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 618498487 - 2³ = 618498479 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 (618498187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3725812 + ... + 3725977.

It is an arithmetic number, because the mean of its divisors is an integer number (156487590).

Almost surely, 2^618498487 is an apocalyptic number.

618498487 is a deficient number, since it is larger than the sum of its proper divisors (7451873).

618498487 is an equidigital number, since it uses as much as digits as its factorization.

618498487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451872.

The product of its digits is 3096576, while the sum is 55.

The square root of 618498487 is about 24869.6298122831. The cubic root of 618498487 is about 852.0129854494.

The spelling of 618498487 in words is "six hundred eighteen million, four hundred ninety-eight thousand, four hundred eighty-seven".