7948689 has 8 divisors (see below), whose sum is σ = 12112320. Its totient is φ = 4542096.

The previous prime is 7948667. The next prime is 7948691. The reversal of 7948689 is 9868497.

It is a happy number.

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

It is not a de Polignac number, because 7948689 - 2⁷ = 7948561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7948609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189234 + ... + 189275.

It is an arithmetic number, because the mean of its divisors is an integer number (1514040).

Almost surely, 2^7948689 is an apocalyptic number.

It is an amenable number.

7948689 is a deficient number, since it is larger than the sum of its proper divisors (4163631).

7948689 is a wasteful number, since it uses less digits than its factorization.

7948689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378519.

The product of its digits is 870912, while the sum is 51.

The square root of 7948689 is about 2819.3419444970. The cubic root of 7948689 is about 199.5714908887.

The spelling of 7948689 in words is "seven million, nine hundred forty-eight thousand, six hundred eighty-nine".