72422407 has 2 divisors, whose sum is σ = 72422408. Its totient is φ = 72422406.

The previous prime is 72422401. The next prime is 72422419. The reversal of 72422407 is 70422427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72422407 - 2⁷ = 72422279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72422401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36211203 + 36211204.

It is an arithmetic number, because the mean of its divisors is an integer number (36211204).

Almost surely, 2^72422407 is an apocalyptic number.

72422407 is a deficient number, since it is larger than the sum of its proper divisors (1).

72422407 is an equidigital number, since it uses as much as digits as its factorization.

72422407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 72422407 is about 8510.1355453365. The cubic root of 72422407 is about 416.8287361699.

The spelling of 72422407 in words is "seventy-two million, four hundred twenty-two thousand, four hundred seven".