988203861 has 16 divisors (see below), whose sum is σ = 1466294400. Its totient is φ = 657772704.

The previous prime is 988203857. The next prime is 988203869. The reversal of 988203861 is 168302889.

It is not a de Polignac number, because 988203861 - 2² = 988203857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988203869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10816 + ... + 45753.

It is an arithmetic number, because the mean of its divisors is an integer number (91643400).

Almost surely, 2^988203861 is an apocalyptic number.

It is an amenable number.

988203861 is a deficient number, since it is larger than the sum of its proper divisors (478090539).

988203861 is a wasteful number, since it uses less digits than its factorization.

988203861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57225 (or 57219 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 988203861 is about 31435.7099649427. The cubic root of 988203861 is about 996.0523905523.

The spelling of 988203861 in words is "nine hundred eighty-eight million, two hundred three thousand, eight hundred sixty-one".