72361343 has 4 divisors (see below), whose sum is σ = 72393768. Its totient is φ = 72328920.

The previous prime is 72361327. The next prime is 72361357. The reversal of 72361343 is 34316327.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34316327 = 409 ⋅83903.

It is a cyclic number.

It is not a de Polignac number, because 72361343 - 2⁴ = 72361327 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 (72361363) 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, 12596 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (18098442).

Almost surely, 2^72361343 is an apocalyptic number.

72361343 is a deficient number, since it is larger than the sum of its proper divisors (32425).

72361343 is a wasteful number, since it uses less digits than its factorization.

72361343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32424.

The product of its digits is 9072, while the sum is 29.

The square root of 72361343 is about 8506.5470668186. The cubic root of 72361343 is about 416.7115515024.

The spelling of 72361343 in words is "seventy-two million, three hundred sixty-one thousand, three hundred forty-three".