72330407 has 2 divisors, whose sum is σ = 72330408. Its totient is φ = 72330406.

The previous prime is 72330373. The next prime is 72330413. The reversal of 72330407 is 70403327.

It is a strong prime.

It is an emirp because it is prime and its reverse (70403327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72330407 - 2⁸ = 72330151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72330487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36165203 + 36165204.

It is an arithmetic number, because the mean of its divisors is an integer number (36165204).

Almost surely, 2^72330407 is an apocalyptic number.

72330407 is a deficient number, since it is larger than the sum of its proper divisors (1).

72330407 is an equidigital number, since it uses as much as digits as its factorization.

72330407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 72330407 is about 8504.7285083064. The cubic root of 72330407 is about 416.6521587126.

The spelling of 72330407 in words is "seventy-two million, three hundred thirty thousand, four hundred seven".