72023983 has 2 divisors, whose sum is σ = 72023984. Its totient is φ = 72023982.

The previous prime is 72023957. The next prime is 72023989. The reversal of 72023983 is 38932027.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72023983 is a prime.

It is equal to p_4229980 and since 72023983 and 4229980 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72023989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36011991 + 36011992.

It is an arithmetic number, because the mean of its divisors is an integer number (36011992).

Almost surely, 2^72023983 is an apocalyptic number.

72023983 is a deficient number, since it is larger than the sum of its proper divisors (1).

72023983 is an equidigital number, since it uses as much as digits as its factorization.

72023983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 72023983 is about 8486.6944684017. The cubic root of 72023983 is about 416.0629508255.

The spelling of 72023983 in words is "seventy-two million, twenty-three thousand, nine hundred eighty-three".