988257834 has 20 divisors (see below), whose sum is σ = 2214429954. Its totient is φ = 329419224.

The previous prime is 988257793. The next prime is 988257841. The reversal of 988257834 is 438752889.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 973627209 + 14630625 = 31203^2 + 3825^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3050017 + ... + 3050340.

Almost surely, 2^988257834 is an apocalyptic number.

988257834 is an abundant number, since it is smaller than the sum of its proper divisors (1226172120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

988257834 is a wasteful number, since it uses less digits than its factorization.

988257834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100371 (or 6100362 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 988257834 is about 31436.5684195969. The cubic root of 988257834 is about 996.0705241106.

The spelling of 988257834 in words is "nine hundred eighty-eight million, two hundred fifty-seven thousand, eight hundred thirty-four".