72974303 has 2 divisors, whose sum is σ = 72974304. Its totient is φ = 72974302.

The previous prime is 72974281. The next prime is 72974309. The reversal of 72974303 is 30347927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72974303 - 2²⁶ = 5865439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72974309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36487151 + 36487152.

It is an arithmetic number, because the mean of its divisors is an integer number (36487152).

Almost surely, 2^72974303 is an apocalyptic number.

72974303 is a deficient number, since it is larger than the sum of its proper divisors (1).

72974303 is an equidigital number, since it uses as much as digits as its factorization.

72974303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 72974303 is about 8542.4998097747. The cubic root of 72974303 is about 417.8848743945.

It can be divided in two parts, 72974 and 303, that multiplied together give a palindrome (22111122).

The spelling of 72974303 in words is "seventy-two million, nine hundred seventy-four thousand, three hundred three".