72846737 has 2 divisors, whose sum is σ = 72846738. Its totient is φ = 72846736.

The previous prime is 72846733. The next prime is 72846743. The reversal of 72846737 is 73764827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69372241 + 3474496 = 8329^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 72846737 - 2² = 72846733 is a prime.

It is not a weakly prime, because it can be changed into another prime (72846733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36423368 + 36423369.

It is an arithmetic number, because the mean of its divisors is an integer number (36423369).

Almost surely, 2^72846737 is an apocalyptic number.

It is an amenable number.

72846737 is a deficient number, since it is larger than the sum of its proper divisors (1).

72846737 is an equidigital number, since it uses as much as digits as its factorization.

72846737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 72846737 is about 8535.0299940891. The cubic root of 72846737 is about 417.6412315764.

The spelling of 72846737 in words is "seventy-two million, eight hundred forty-six thousand, seven hundred thirty-seven".