7948289 has 4 divisors (see below), whose sum is σ = 8366640. Its totient is φ = 7529940.

The previous prime is 7948279. The next prime is 7948309. The reversal of 7948289 is 9828497.

7948289 is digitally balanced in base 3, 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: 9828497 = 7 ⋅1404071.

It is a cyclic number.

It is not a de Polignac number, because 7948289 - 2⁸ = 7948033 is a prime.

It is a d-powerful number, because it can be written as 7⁵ + 9³ + 4¹⁰ + 8 + 2¹¹ + 8⁷ + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7948279) 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, 209147 + ... + 209184.

It is an arithmetic number, because the mean of its divisors is an integer number (2091660).

Almost surely, 2^7948289 is an apocalyptic number.

It is an amenable number.

7948289 is a deficient number, since it is larger than the sum of its proper divisors (418351).

7948289 is a wasteful number, since it uses less digits than its factorization.

7948289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418350.

The product of its digits is 290304, while the sum is 47.

The square root of 7948289 is about 2819.2710050650. The cubic root of 7948289 is about 199.5681431696.

The spelling of 7948289 in words is "seven million, nine hundred forty-eight thousand, two hundred eighty-nine".