72075943 has 2 divisors, whose sum is σ = 72075944. Its totient is φ = 72075942.

The previous prime is 72075931. The next prime is 72076007. The reversal of 72075943 is 34957027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72075943 - 2²¹ = 69978791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72072943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36037971 + 36037972.

It is an arithmetic number, because the mean of its divisors is an integer number (36037972).

Almost surely, 2^72075943 is an apocalyptic number.

72075943 is a deficient number, since it is larger than the sum of its proper divisors (1).

72075943 is an equidigital number, since it uses as much as digits as its factorization.

72075943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 72075943 is about 8489.7551790379. The cubic root of 72075943 is about 416.1629797018.

The spelling of 72075943 in words is "seventy-two million, seventy-five thousand, nine hundred forty-three".