988291673 has 8 divisors (see below), whose sum is σ = 995318280. Its totient is φ = 981285760.

The previous prime is 988291639. The next prime is 988291679. The reversal of 988291673 is 376192889.

It can be written as a sum of positive squares in 4 ways, for example, as 649842064 + 338449609 = 25492^2 + 18397^2 .

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 988291673 - 2⁸ = 988291417 is a prime.

It is a super-2 number, since 2×988291673² = 1953440861842277858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988291679) 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, 97823 + ... + 107451.

It is an arithmetic number, because the mean of its divisors is an integer number (124414785).

Almost surely, 2^988291673 is an apocalyptic number.

It is an amenable number.

988291673 is a deficient number, since it is larger than the sum of its proper divisors (7026607).

988291673 is a wasteful number, since it uses less digits than its factorization.

988291673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10347.

The product of its digits is 1306368, while the sum is 53.

The square root of 988291673 is about 31437.1066257695. The cubic root of 988291673 is about 996.0818928191.

The spelling of 988291673 in words is "nine hundred eighty-eight million, two hundred ninety-one thousand, six hundred seventy-three".