72741413 has 4 divisors (see below), whose sum is σ = 72795468. Its totient is φ = 72687360.

The previous prime is 72741401. The next prime is 72741437. The reversal of 72741413 is 31414727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31414727 = 59 ⋅532453.

It can be written as a sum of positive squares in 2 ways, for example, as 31550689 + 41190724 = 5617^2 + 6418^2 .

It is a cyclic number.

It is not a de Polignac number, because 72741413 - 2¹⁰ = 72740389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72741313) 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 3 ways as a sum of consecutive naturals, for example, 24956 + ... + 27717.

It is an arithmetic number, because the mean of its divisors is an integer number (18198867).

Almost surely, 2^72741413 is an apocalyptic number.

It is an amenable number.

72741413 is a deficient number, since it is larger than the sum of its proper divisors (54055).

72741413 is a wasteful number, since it uses less digits than its factorization.

72741413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54054.

The product of its digits is 4704, while the sum is 29.

The square root of 72741413 is about 8528.8576609063. The cubic root of 72741413 is about 417.4398550815.

The spelling of 72741413 in words is "seventy-two million, seven hundred forty-one thousand, four hundred thirteen".