72660043 has 2 divisors, whose sum is σ = 72660044. Its totient is φ = 72660042.

The previous prime is 72660031. The next prime is 72660113. The reversal of 72660043 is 34006627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72660043 - 2¹³ = 72651851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72659993 and 72660020.

It is not a weakly prime, because it can be changed into another prime (72666043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36330021 + 36330022.

It is an arithmetic number, because the mean of its divisors is an integer number (36330022).

Almost surely, 2^72660043 is an apocalyptic number.

72660043 is a deficient number, since it is larger than the sum of its proper divisors (1).

72660043 is an equidigital number, since it uses as much as digits as its factorization.

72660043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 72660043 is about 8524.0860507153. The cubic root of 72660043 is about 417.2841448155.

The spelling of 72660043 in words is "seventy-two million, six hundred sixty thousand, forty-three".