72412099 has 2 divisors, whose sum is σ = 72412100. Its totient is φ = 72412098.

The previous prime is 72412069. The next prime is 72412121. The reversal of 72412099 is 99021427.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (99021427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72412099 - 2⁹ = 72411587 is a prime.

It is not a weakly prime, because it can be changed into another prime (72412049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36206049 + 36206050.

It is an arithmetic number, because the mean of its divisors is an integer number (36206050).

Almost surely, 2^72412099 is an apocalyptic number.

72412099 is a deficient number, since it is larger than the sum of its proper divisors (1).

72412099 is an equidigital number, since it uses as much as digits as its factorization.

72412099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 72412099 is about 8509.5298930082. The cubic root of 72412099 is about 416.8089592590.

The spelling of 72412099 in words is "seventy-two million, four hundred twelve thousand, ninety-nine".