72746 has 4 divisors (see below), whose sum is σ = 109122. Its totient is φ = 36372.

The previous prime is 72739. The next prime is 72763. The reversal of 72746 is 64727.

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., 57121 + 15625 = 239^2 + 125^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18185 + ... + 18188.

2⁷²⁷⁴⁶ is an apocalyptic number.

72746 is a deficient number, since it is larger than the sum of its proper divisors (36376).

72746 is a wasteful number, since it uses less digits than its factorization.

72746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36375.

The product of its digits is 2352, while the sum is 26.

The square root of 72746 is about 269.7146640433. The cubic root of 72746 is about 41.7448629342.

It can be divided in two parts, 72 and 746, that added together give a palindrome (818).

The spelling of 72746 in words is "seventy-two thousand, seven hundred forty-six".