988040673 has 36 divisors (see below), whose sum is σ = 1518545028. Its totient is φ = 642453120.

The previous prime is 988040653. The next prime is 988040687. The reversal of 988040673 is 376040889.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 932508369 = 7452^2 + 30537^2 .

It is not a de Polignac number, because 988040673 - 2²⁵ = 954486241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988040633) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 267165 + ... + 270837.

Almost surely, 2^988040673 is an apocalyptic number.

It is an amenable number.

988040673 is a deficient number, since it is larger than the sum of its proper divisors (530504355).

988040673 is an frugal number, since it uses more digits than its factorization.

988040673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 988040673 is about 31433.1142745990. The cubic root of 988040673 is about 995.9975595092.

The spelling of 988040673 in words is "nine hundred eighty-eight million, forty thousand, six hundred seventy-three".