988513849 has 4 divisors (see below), whose sum is σ = 1031492736. Its totient is φ = 945534964.

The previous prime is 988513847. The next prime is 988513853. The reversal of 988513849 is 948315889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 988513849 - 2¹ = 988513847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 988513849.

It is not an unprimeable number, because it can be changed into a prime (988513843) 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, 21489409 + ... + 21489454.

It is an arithmetic number, because the mean of its divisors is an integer number (257873184).

Almost surely, 2^988513849 is an apocalyptic number.

It is an amenable number.

988513849 is a deficient number, since it is larger than the sum of its proper divisors (42978887).

988513849 is a wasteful number, since it uses less digits than its factorization.

988513849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42978886.

The product of its digits is 2488320, while the sum is 55.

The square root of 988513849 is about 31440.6400857234. The cubic root of 988513849 is about 996.1565296613.

The spelling of 988513849 in words is "nine hundred eighty-eight million, five hundred thirteen thousand, eight hundred forty-nine".