988811853 has 4 divisors (see below), whose sum is σ = 1318415808. Its totient is φ = 659207900.

The previous prime is 988811849. The next prime is 988811861. The reversal of 988811853 is 358118889.

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 988811853 - 2² = 988811849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988811796 and 988811805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988811833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164801973 + ... + 164801978.

It is an arithmetic number, because the mean of its divisors is an integer number (329603952).

Almost surely, 2^988811853 is an apocalyptic number.

It is an amenable number.

988811853 is a deficient number, since it is larger than the sum of its proper divisors (329603955).

988811853 is a wasteful number, since it uses less digits than its factorization.

988811853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329603954.

The product of its digits is 552960, while the sum is 51.

The square root of 988811853 is about 31445.3788814827. The cubic root of 988811853 is about 996.2566222750.

The spelling of 988811853 in words is "nine hundred eighty-eight million, eight hundred eleven thousand, eight hundred fifty-three".