72390363 has 8 divisors (see below), whose sum is σ = 99634176. Its totient is φ = 46703400.

The previous prime is 72390343. The next prime is 72390397. The reversal of 72390363 is 36309327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72390363 - 2⁶ = 72390299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72390343) 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 7 ways as a sum of consecutive naturals, for example, 389103 + ... + 389288.

It is an arithmetic number, because the mean of its divisors is an integer number (12454272).

Almost surely, 2^72390363 is an apocalyptic number.

72390363 is a deficient number, since it is larger than the sum of its proper divisors (27243813).

72390363 is a wasteful number, since it uses less digits than its factorization.

72390363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778425.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 72390363 is about 8508.2526408188. The cubic root of 72390363 is about 416.7672504548.

The spelling of 72390363 in words is "seventy-two million, three hundred ninety thousand, three hundred sixty-three".