72300373 has 2 divisors, whose sum is σ = 72300374. Its totient is φ = 72300372.

The previous prime is 72300367. The next prime is 72300383. The reversal of 72300373 is 37300327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36216324 + 36084049 = 6018^2 + 6007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72300373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72300353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36150186 + 36150187.

It is an arithmetic number, because the mean of its divisors is an integer number (36150187).

Almost surely, 2^72300373 is an apocalyptic number.

It is an amenable number.

72300373 is a deficient number, since it is larger than the sum of its proper divisors (1).

72300373 is an equidigital number, since it uses as much as digits as its factorization.

72300373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 25.

The square root of 72300373 is about 8502.9626013525. The cubic root of 72300373 is about 416.5944814328.

The spelling of 72300373 in words is "seventy-two million, three hundred thousand, three hundred seventy-three".