72713246 has 16 divisors (see below), whose sum is σ = 110555280. Its totient is φ = 35864640.

The previous prime is 72713243. The next prime is 72713261. The reversal of 72713246 is 64231727.

72713246 = 171² + 172² + ... + 606².

It is a super-2 number, since 2×72713246² = 10574432287713032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72713243) 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 7 ways as a sum of consecutive naturals, for example, 60665 + ... + 61851.

It is an arithmetic number, because the mean of its divisors is an integer number (6909705).

Almost surely, 2^72713246 is an apocalyptic number.

72713246 is a deficient number, since it is larger than the sum of its proper divisors (37842034).

72713246 is a wasteful number, since it uses less digits than its factorization.

72713246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its digits is 14112, while the sum is 32.

The square root of 72713246 is about 8527.2062247843. The cubic root of 72713246 is about 417.3859676379.

The spelling of 72713246 in words is "seventy-two million, seven hundred thirteen thousand, two hundred forty-six".