989036545 has 16 divisors (see below), whose sum is σ = 1427783040. Its totient is φ = 642501504.

The previous prime is 989036539. The next prime is 989036597. The reversal of 989036545 is 545630989.

It is a cyclic number.

It is not a de Polignac number, because 989036545 - 2³ = 989036537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742972 + ... + 744301.

It is an arithmetic number, because the mean of its divisors is an integer number (89236440).

It is a Proth number, since it is equal to 30183 ⋅ 2¹⁵ + 1 and 30183 < 2¹⁵.

Almost surely, 2^989036545 is an apocalyptic number.

989036545 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

989036545 is a deficient number, since it is larger than the sum of its proper divisors (438746495).

989036545 is a wasteful number, since it uses less digits than its factorization.

989036545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487304.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 989036545 is about 31448.9514133619. The cubic root of 989036545 is about 996.3320777957.

The spelling of 989036545 in words is "nine hundred eighty-nine million, thirty-six thousand, five hundred forty-five".