72866041 has 2 divisors, whose sum is σ = 72866042. Its totient is φ = 72866040.

The previous prime is 72866023. The next prime is 72866069. The reversal of 72866041 is 14066827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 4968441 = 8240^2 + 2229^2 .

It is a cyclic number.

It is not a de Polignac number, because 72866041 - 2¹⁷ = 72734969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72865988 and 72866006.

It is not a weakly prime, because it can be changed into another prime (72866341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36433020 + 36433021.

It is an arithmetic number, because the mean of its divisors is an integer number (36433021).

Almost surely, 2^72866041 is an apocalyptic number.

It is an amenable number.

72866041 is a deficient number, since it is larger than the sum of its proper divisors (1).

72866041 is an equidigital number, since it uses as much as digits as its factorization.

72866041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72866041 is about 8536.1607880827. The cubic root of 72866041 is about 417.6781192240.

The spelling of 72866041 in words is "seventy-two million, eight hundred sixty-six thousand, forty-one".