73945811 has 2 divisors, whose sum is σ = 73945812. Its totient is φ = 73945810.

The previous prime is 73945793. The next prime is 73945829. The reversal of 73945811 is 11854937.

It is a balanced prime because it is at equal distance from previous prime (73945793) and next prime (73945829).

It is an emirp because it is prime and its reverse (11854937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73945811 - 2⁶ = 73945747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73945831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36972905 + 36972906.

It is an arithmetic number, because the mean of its divisors is an integer number (36972906).

Almost surely, 2^73945811 is an apocalyptic number.

73945811 is a deficient number, since it is larger than the sum of its proper divisors (1).

73945811 is an equidigital number, since it uses as much as digits as its factorization.

73945811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 73945811 is about 8599.1750185701. The cubic root of 73945811 is about 419.7311412326.

The spelling of 73945811 in words is "seventy-three million, nine hundred forty-five thousand, eight hundred eleven".