72406303 has 2 divisors, whose sum is σ = 72406304. Its totient is φ = 72406302.

The previous prime is 72406289. The next prime is 72406319. The reversal of 72406303 is 30360427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72406303 - 2²⁵ = 38851871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72406333) 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 as a sum of consecutive naturals, namely, 36203151 + 36203152.

It is an arithmetic number, because the mean of its divisors is an integer number (36203152).

Almost surely, 2^72406303 is an apocalyptic number.

72406303 is a deficient number, since it is larger than the sum of its proper divisors (1).

72406303 is an equidigital number, since it uses as much as digits as its factorization.

72406303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 72406303 is about 8509.1893268395. The cubic root of 72406303 is about 416.7978382391.

The spelling of 72406303 in words is "seventy-two million, four hundred six thousand, three hundred three".