7238689 has 4 divisors (see below), whose sum is σ = 7244080. Its totient is φ = 7233300.

The previous prime is 7238683. The next prime is 7238701. The reversal of 7238689 is 9868327.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7238689 - 2²¹ = 5141537 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7238683) 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 3 ways as a sum of consecutive naturals, for example, 1114 + ... + 3964.

It is an arithmetic number, because the mean of its divisors is an integer number (1811020).

Almost surely, 2^7238689 is an apocalyptic number.

It is an amenable number.

7238689 is a deficient number, since it is larger than the sum of its proper divisors (5391).

7238689 is a wasteful number, since it uses less digits than its factorization.

7238689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its digits is 145152, while the sum is 43.

The square root of 7238689 is about 2690.4811837290. The cubic root of 7238689 is about 193.4431279512.

The spelling of 7238689 in words is "seven million, two hundred thirty-eight thousand, six hundred eighty-nine".