988856783 has 4 divisors (see below), whose sum is σ = 1015582680. Its totient is φ = 962130888.

The previous prime is 988856773. The next prime is 988856789. The reversal of 988856783 is 387658889.

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 988856783 - 2¹⁰ = 988855759 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 (988856789) 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, 13362893 + ... + 13362966.

It is an arithmetic number, because the mean of its divisors is an integer number (253895670).

Almost surely, 2^988856783 is an apocalyptic number.

988856783 is a deficient number, since it is larger than the sum of its proper divisors (26725897).

988856783 is a wasteful number, since it uses less digits than its factorization.

988856783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26725896.

The product of its digits is 23224320, while the sum is 62.

The square root of 988856783 is about 31446.0932867662. The cubic root of 988856783 is about 996.2717114726.

The spelling of 988856783 in words is "nine hundred eighty-eight million, eight hundred fifty-six thousand, seven hundred eighty-three".