72938 has 4 divisors (see below), whose sum is σ = 109410. Its totient is φ = 36468.

The previous prime is 72937. The next prime is 72949. The reversal of 72938 is 83927.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 6889 = 257^2 + 83^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72938.

It is not an unprimeable number, because it can be changed into a prime (72931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18233 + ... + 18236.

2⁷²⁹³⁸ is an apocalyptic number.

72938 is a deficient number, since it is larger than the sum of its proper divisors (36472).

72938 is a wasteful number, since it uses less digits than its factorization.

72938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36471.

The product of its digits is 3024, while the sum is 29.

The square root of 72938 is about 270.0703612024. The cubic root of 72938 is about 41.7815566934.

It can be divided in two parts, 729 and 38, that added together give a palindrome (767).

The spelling of 72938 in words is "seventy-two thousand, nine hundred thirty-eight".