72393047 has 2 divisors, whose sum is σ = 72393048. Its totient is φ = 72393046.

The previous prime is 72392989. The next prime is 72393049. The reversal of 72393047 is 74039327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72393047 - 2¹⁶ = 72327511 is a prime.

Together with 72393049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72392998 and 72393016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72393049) 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, 36196523 + 36196524.

It is an arithmetic number, because the mean of its divisors is an integer number (36196524).

Almost surely, 2^72393047 is an apocalyptic number.

72393047 is a deficient number, since it is larger than the sum of its proper divisors (1).

72393047 is an equidigital number, since it uses as much as digits as its factorization.

72393047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 72393047 is about 8508.4103685706. The cubic root of 72393047 is about 416.7724011840.

The spelling of 72393047 in words is "seventy-two million, three hundred ninety-three thousand, forty-seven".