7989423 has 8 divisors (see below), whose sum is σ = 11472048. Its totient is φ = 4916544.

The previous prime is 7989419. The next prime is 7989427. The reversal of 7989423 is 3249897.

It is an interprime number because it is at equal distance from previous prime (7989419) and next prime (7989427).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7989423 - 2² = 7989419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7989427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102390 + ... + 102467.

It is an arithmetic number, because the mean of its divisors is an integer number (1434006).

Almost surely, 2^7989423 is an apocalyptic number.

7989423 is a deficient number, since it is larger than the sum of its proper divisors (3482625).

7989423 is a wasteful number, since it uses less digits than its factorization.

7989423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204873.

The product of its digits is 108864, while the sum is 42.

The square root of 7989423 is about 2826.5567392147. The cubic root of 7989423 is about 199.9118194600.

The spelling of 7989423 in words is "seven million, nine hundred eighty-nine thousand, four hundred twenty-three".