72342233 has 2 divisors, whose sum is σ = 72342234. Its totient is φ = 72342232.

The previous prime is 72342217. The next prime is 72342241. The reversal of 72342233 is 33224327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71707024 + 635209 = 8468^2 + 797^2 .

It is an emirp because it is prime and its reverse (33224327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72342233 - 2⁴ = 72342217 is a prime.

It is not a weakly prime, because it can be changed into another prime (72342203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36171116 + 36171117.

It is an arithmetic number, because the mean of its divisors is an integer number (36171117).

Almost surely, 2^72342233 is an apocalyptic number.

It is an amenable number.

72342233 is a deficient number, since it is larger than the sum of its proper divisors (1).

72342233 is an equidigital number, since it uses as much as digits as its factorization.

72342233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 26.

The square root of 72342233 is about 8505.4237401790. The cubic root of 72342233 is about 416.6748649765.

The spelling of 72342233 in words is "seventy-two million, three hundred forty-two thousand, two hundred thirty-three".