73290723 has 16 divisors (see below), whose sum is σ = 112876416. Its totient is φ = 41805440.

The previous prime is 73290713. The next prime is 73290731. The reversal of 73290723 is 32709237.

It is a cyclic number.

It is not a de Polignac number, because 73290723 - 2⁹ = 73290211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (73290713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64761 + ... + 65882.

It is an arithmetic number, because the mean of its divisors is an integer number (7054776).

Almost surely, 2^73290723 is an apocalyptic number.

73290723 is a deficient number, since it is larger than the sum of its proper divisors (39585693).

73290723 is a wasteful number, since it uses less digits than its factorization.

73290723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130674.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 73290723 is about 8561.0001168088. Note that the first 3 decimals coincide. The cubic root of 73290723 is about 418.4879929867.

The spelling of 73290723 in words is "seventy-three million, two hundred ninety thousand, seven hundred twenty-three".