988441647 has 16 divisors (see below), whose sum is σ = 1323820800. Its totient is φ = 656020352.

The previous prime is 988441637. The next prime is 988441709. The reversal of 988441647 is 746144889.

It is a cyclic number.

It is not a de Polignac number, because 988441647 - 2²⁴ = 971664431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988441647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988441607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011223 + ... + 1012199.

It is an arithmetic number, because the mean of its divisors is an integer number (82738800).

Almost surely, 2^988441647 is an apocalyptic number.

988441647 is a deficient number, since it is larger than the sum of its proper divisors (335379153).

988441647 is a wasteful number, since it uses less digits than its factorization.

988441647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 1548288, while the sum is 51.

The square root of 988441647 is about 31439.4918374964. The cubic root of 988441647 is about 996.1322756612.

The spelling of 988441647 in words is "nine hundred eighty-eight million, four hundred forty-one thousand, six hundred forty-seven".