72995941 has 2 divisors, whose sum is σ = 72995942. Its totient is φ = 72995940.

The previous prime is 72995939. The next prime is 72995953. The reversal of 72995941 is 14959927.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 1102500 = 8479^2 + 1050^2 .

It is an emirp because it is prime and its reverse (14959927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72995941 - 2¹ = 72995939 is a prime.

Together with 72995939, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 72995891 and 72995900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72995911) 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, 36497970 + 36497971.

It is an arithmetic number, because the mean of its divisors is an integer number (36497971).

Almost surely, 2^72995941 is an apocalyptic number.

It is an amenable number.

72995941 is a deficient number, since it is larger than the sum of its proper divisors (1).

72995941 is an equidigital number, since it uses as much as digits as its factorization.

72995941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 46.

The square root of 72995941 is about 8543.7662070073. The cubic root of 72995941 is about 417.9261734042.

The spelling of 72995941 in words is "seventy-two million, nine hundred ninety-five thousand, nine hundred forty-one".