7642339 has 4 divisors (see below), whose sum is σ = 7721224. Its totient is φ = 7563456.

The previous prime is 7642331. The next prime is 7642343. The reversal of 7642339 is 9332467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9332467 = 97 ⋅96211.

It is a cyclic number.

It is not a de Polignac number, because 7642339 - 2³ = 7642331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7642331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39297 + ... + 39490.

It is an arithmetic number, because the mean of its divisors is an integer number (1930306).

Almost surely, 2^7642339 is an apocalyptic number.

7642339 is a deficient number, since it is larger than the sum of its proper divisors (78885).

7642339 is an equidigital number, since it uses as much as digits as its factorization.

7642339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78884.

The product of its digits is 27216, while the sum is 34.

The square root of 7642339 is about 2764.4780700885. The cubic root of 7642339 is about 196.9739373047.

The spelling of 7642339 in words is "seven million, six hundred forty-two thousand, three hundred thirty-nine".