989284398479 has 8 divisors (see below), whose sum is σ = 1065461858160. Its totient is φ = 913118175936.

The previous prime is 989284398463. The next prime is 989284398547. The reversal of 989284398479 is 974893482989.

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 989284398479 - 2⁴ = 989284398463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989284398439) 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, 2625989 + ... + 2978990.

It is an arithmetic number, because the mean of its divisors is an integer number (133182732270).

Almost surely, 2^989284398479 is an apocalyptic number.

989284398479 is a deficient number, since it is larger than the sum of its proper divisors (76177459681).

989284398479 is a wasteful number, since it uses less digits than its factorization.

989284398479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618569.

The product of its digits is 2257403904, while the sum is 80.

The spelling of 989284398479 in words is "nine hundred eighty-nine billion, two hundred eighty-four million, three hundred ninety-eight thousand, four hundred seventy-nine".