7063989 has 4 divisors (see below), whose sum is σ = 9418656. Its totient is φ = 4709324.

The previous prime is 7063981. The next prime is 7064039. The reversal of 7063989 is 9893607.

It is a happy number.

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: 9893607 = 3 ⋅3297869.

It is a cyclic number.

It is not a de Polignac number, because 7063989 - 2³ = 7063981 is a prime.

It is a Curzon number.

7063989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7063989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7063981) 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, 1177329 + ... + 1177334.

It is an arithmetic number, because the mean of its divisors is an integer number (2354664).

Almost surely, 2^7063989 is an apocalyptic number.

It is an amenable number.

7063989 is a deficient number, since it is larger than the sum of its proper divisors (2354667).

7063989 is a wasteful number, since it uses less digits than its factorization.

7063989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354666.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 7063989 is about 2657.8165850939. The cubic root of 7063989 is about 191.8742394761.

The spelling of 7063989 in words is "seven million, sixty-three thousand, nine hundred eighty-nine".