73942823 has 2 divisors, whose sum is σ = 73942824. Its totient is φ = 73942822.

The previous prime is 73942789. The next prime is 73942849. The reversal of 73942823 is 32824937.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (32824937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73942823 - 2²² = 69748519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73942853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36971411 + 36971412.

It is an arithmetic number, because the mean of its divisors is an integer number (36971412).

Almost surely, 2^73942823 is an apocalyptic number.

73942823 is a deficient number, since it is larger than the sum of its proper divisors (1).

73942823 is an equidigital number, since it uses as much as digits as its factorization.

73942823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 73942823 is about 8599.0012792184. The cubic root of 73942823 is about 419.7254876622.

The spelling of 73942823 in words is "seventy-three million, nine hundred forty-two thousand, eight hundred twenty-three".