73908823 has 4 divisors (see below), whose sum is σ = 73957968. Its totient is φ = 73859680.

The previous prime is 73908811. The next prime is 73908829. The reversal of 73908823 is 32880937.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73908823 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73908829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22243 + ... + 25348.

It is an arithmetic number, because the mean of its divisors is an integer number (18489492).

Almost surely, 2^73908823 is an apocalyptic number.

73908823 is a deficient number, since it is larger than the sum of its proper divisors (49145).

73908823 is a wasteful number, since it uses less digits than its factorization.

73908823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49144.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 73908823 is about 8597.0240781331. The cubic root of 73908823 is about 419.6611458106.

The spelling of 73908823 in words is "seventy-three million, nine hundred eight thousand, eight hundred twenty-three".