989967485 has 16 divisors (see below), whose sum is σ = 1320614400. Its totient is φ = 707469120.

The previous prime is 989967463. The next prime is 989967487. The reversal of 989967485 is 584769989.

It is not a de Polignac number, because 989967485 - 2⁶ = 989967421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989967487) 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, 243635 + ... + 247664.

It is an arithmetic number, because the mean of its divisors is an integer number (82538400).

Almost surely, 2^989967485 is an apocalyptic number.

It is an amenable number.

989967485 is a deficient number, since it is larger than the sum of its proper divisors (330646915).

989967485 is a wasteful number, since it uses less digits than its factorization.

989967485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491348.

The product of its digits is 39191040, while the sum is 65.

The square root of 989967485 is about 31463.7487435938. The cubic root of 989967485 is about 996.6445820967.

The spelling of 989967485 in words is "nine hundred eighty-nine million, nine hundred sixty-seven thousand, four hundred eighty-five".