7638339 has 8 divisors (see below), whose sum is σ = 10535760. Its totient is φ = 4916576.

The previous prime is 7638331. The next prime is 7638347. The reversal of 7638339 is 9338367.

It is an interprime number because it is at equal distance from previous prime (7638331) and next prime (7638347).

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

It is a cyclic number.

It is not a de Polignac number, because 7638339 - 2³ = 7638331 is a prime.

7638339 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7638297 and 7638306.

It is not an unprimeable number, because it can be changed into a prime (7638331) 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, 43812 + ... + 43985.

It is an arithmetic number, because the mean of its divisors is an integer number (1316970).

Almost surely, 2^7638339 is an apocalyptic number.

7638339 is a deficient number, since it is larger than the sum of its proper divisors (2897421).

7638339 is a wasteful number, since it uses less digits than its factorization.

7638339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87829.

The product of its digits is 81648, while the sum is 39.

The square root of 7638339 is about 2763.7545115296. The cubic root of 7638339 is about 196.9395659231.

The spelling of 7638339 in words is "seven million, six hundred thirty-eight thousand, three hundred thirty-nine".