988042791 has 8 divisors (see below), whose sum is σ = 1323045360. Its totient is φ = 655867712.

The previous prime is 988042787. The next prime is 988042799. The reversal of 988042791 is 197240889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 988042791 - 2² = 988042787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988042791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988042799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706056 + ... + 707453.

It is an arithmetic number, because the mean of its divisors is an integer number (165380670).

Almost surely, 2^988042791 is an apocalyptic number.

988042791 is a deficient number, since it is larger than the sum of its proper divisors (335002569).

988042791 is a wasteful number, since it uses less digits than its factorization.

988042791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413745.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 988042791 is about 31433.1479651657. The cubic root of 988042791 is about 995.9982711942.

The spelling of 988042791 in words is "nine hundred eighty-eight million, forty-two thousand, seven hundred ninety-one".