989513 has 4 divisors (see below), whose sum is σ = 1130880. Its totient is φ = 848148.

The previous prime is 989507. The next prime is 989533. The reversal of 989513 is 315989.

989513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315989 = 19 ⋅16631.

It is not a de Polignac number, because 989513 - 2¹⁰ = 988489 is a prime.

It is a super-3 number, since 3×989513³ = 2906603334529286091, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989533) 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, 70673 + ... + 70686.

It is an arithmetic number, because the mean of its divisors is an integer number (282720).

2⁹⁸⁹⁵¹³ is an apocalyptic number.

It is an amenable number.

989513 is a deficient number, since it is larger than the sum of its proper divisors (141367).

989513 is a wasteful number, since it uses less digits than its factorization.

989513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141366.

The product of its digits is 9720, while the sum is 35.

The square root of 989513 is about 994.7426802948. The cubic root of 989513 is about 99.6492041953.

The spelling of 989513 in words is "nine hundred eighty-nine thousand, five hundred thirteen".