7238739 has 8 divisors (see below), whose sum is σ = 9667840. Its totient is φ = 4817736.

The previous prime is 7238711. The next prime is 7238743. The reversal of 7238739 is 9378327.

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

It is not a de Polignac number, because 7238739 - 2¹⁵ = 7205971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7238697 and 7238706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7238339) 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 7 ways as a sum of consecutive naturals, for example, 522 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (1208480).

Almost surely, 2^7238739 is an apocalyptic number.

7238739 is a deficient number, since it is larger than the sum of its proper divisors (2429101).

7238739 is a wasteful number, since it uses less digits than its factorization.

7238739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049.

The product of its digits is 63504, while the sum is 39.

The square root of 7238739 is about 2690.4904757311. The cubic root of 7238739 is about 193.4435733419.

The spelling of 7238739 in words is "seven million, two hundred thirty-eight thousand, seven hundred thirty-nine".