72601073 has 2 divisors, whose sum is σ = 72601074. Its totient is φ = 72601072.

The previous prime is 72601069. The next prime is 72601099. The reversal of 72601073 is 37010627.

It is an a-pointer prime, because the next prime (72601099) can be obtained adding 72601073 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 13126129 = 7712^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 72601073 - 2² = 72601069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (72601063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36300536 + 36300537.

It is an arithmetic number, because the mean of its divisors is an integer number (36300537).

Almost surely, 2^72601073 is an apocalyptic number.

It is an amenable number.

72601073 is a deficient number, since it is larger than the sum of its proper divisors (1).

72601073 is an equidigital number, since it uses as much as digits as its factorization.

72601073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 72601073 is about 8520.6263267438. The cubic root of 72601073 is about 417.1712266972.

The spelling of 72601073 in words is "seventy-two million, six hundred one thousand, seventy-three".