72888407 has 2 divisors, whose sum is σ = 72888408. Its totient is φ = 72888406.

The previous prime is 72888379. The next prime is 72888433. The reversal of 72888407 is 70488827.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72888407 - 2¹⁸ = 72626263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72888437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36444203 + 36444204.

It is an arithmetic number, because the mean of its divisors is an integer number (36444204).

Almost surely, 2^72888407 is an apocalyptic number.

72888407 is a deficient number, since it is larger than the sum of its proper divisors (1).

72888407 is an equidigital number, since it uses as much as digits as its factorization.

72888407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 72888407 is about 8537.4707612969. The cubic root of 72888407 is about 417.7208498433.

The spelling of 72888407 in words is "seventy-two million, eight hundred eighty-eight thousand, four hundred seven".