989034511 has 4 divisors (see below), whose sum is σ = 989796024. Its totient is φ = 988273000.

The previous prime is 989034479. The next prime is 989034533. The reversal of 989034511 is 115430989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115430989 = 2081 ⋅55469.

It is a cyclic number.

It is not a de Polignac number, because 989034511 - 2⁵ = 989034479 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 (989034581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378805 + ... + 381406.

It is an arithmetic number, because the mean of its divisors is an integer number (247449006).

Almost surely, 2^989034511 is an apocalyptic number.

989034511 is a deficient number, since it is larger than the sum of its proper divisors (761513).

989034511 is a wasteful number, since it uses less digits than its factorization.

989034511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761512.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 989034511 is about 31448.9190752242. The cubic root of 989034511 is about 996.3313947940.

The spelling of 989034511 in words is "nine hundred eighty-nine million, thirty-four thousand, five hundred eleven".