72445363 has 4 divisors (see below), whose sum is σ = 72463840. Its totient is φ = 72426888.

The previous prime is 72445361. The next prime is 72445379. The reversal of 72445363 is 36354427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36354427 = 107 ⋅339761.

It is a cyclic number.

It is not a de Polignac number, because 72445363 - 2¹ = 72445361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72445361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (18115960).

Almost surely, 2^72445363 is an apocalyptic number.

72445363 is a deficient number, since it is larger than the sum of its proper divisors (18477).

72445363 is a wasteful number, since it uses less digits than its factorization.

72445363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18476.

The product of its digits is 60480, while the sum is 34.

The square root of 72445363 is about 8511.4841831493. The cubic root of 72445363 is about 416.8727727696.

The spelling of 72445363 in words is "seventy-two million, four hundred forty-five thousand, three hundred sixty-three".