72370433 has 2 divisors, whose sum is σ = 72370434. Its totient is φ = 72370432.

The previous prime is 72370423. The next prime is 72370447. The reversal of 72370433 is 33407327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60481729 + 11888704 = 7777^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 72370433 - 2⁶ = 72370369 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72370396 and 72370405.

It is not a weakly prime, because it can be changed into another prime (72370423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36185216 + 36185217.

It is an arithmetic number, because the mean of its divisors is an integer number (36185217).

Almost surely, 2^72370433 is an apocalyptic number.

It is an amenable number.

72370433 is a deficient number, since it is larger than the sum of its proper divisors (1).

72370433 is an equidigital number, since it uses as much as digits as its factorization.

72370433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 72370433 is about 8507.0813443860. The cubic root of 72370433 is about 416.7289998123.

The spelling of 72370433 in words is "seventy-two million, three hundred seventy thousand, four hundred thirty-three".