8703989 has 4 divisors (see below), whose sum is σ = 9947424. Its totient is φ = 7460556.

The previous prime is 8703971. The next prime is 8704027. The reversal of 8703989 is 9893078.

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.

It is a cyclic number.

It is not a de Polignac number, because 8703989 - 2¹² = 8699893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8703089) 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, 621707 + ... + 621720.

It is an arithmetic number, because the mean of its divisors is an integer number (2486856).

Almost surely, 2^8703989 is an apocalyptic number.

It is an amenable number.

8703989 is a deficient number, since it is larger than the sum of its proper divisors (1243435).

8703989 is a wasteful number, since it uses less digits than its factorization.

8703989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243434.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 8703989 is about 2950.2523620870. The cubic root of 8703989 is about 205.7024405979.

The spelling of 8703989 in words is "eight million, seven hundred three thousand, nine hundred eighty-nine".