938739 has 8 divisors (see below), whose sum is σ = 1258432. Its totient is φ = 622440.

The previous prime is 938713. The next prime is 938747. The reversal of 938739 is 937839.

It is a happy number.

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

It is not a de Polignac number, because 938739 - 2⁷ = 938611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 938697 and 938706.

It is not an unprimeable number, because it can be changed into a prime (938939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (157304).

2⁹³⁸⁷³⁹ is an apocalyptic number.

938739 is a deficient number, since it is larger than the sum of its proper divisors (319693).

938739 is a wasteful number, since it uses less digits than its factorization.

938739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697.

The product of its digits is 40824, while the sum is 39.

The square root of 938739 is about 968.8854421447. The cubic root of 938739 is about 97.9147877915.

Subtracting from 938739 its reverse (937839), we obtain a square (900 = 30²).

The spelling of 938739 in words is "nine hundred thirty-eight thousand, seven hundred thirty-nine".