72302073 has 16 divisors (see below), whose sum is σ = 97612800. Its totient is φ = 47600784.

The previous prime is 72302059. The next prime is 72302093. The reversal of 72302073 is 37020327.

It is not a de Polignac number, because 72302073 - 2⁴ = 72302057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72302093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96940 + ... + 97682.

It is an arithmetic number, because the mean of its divisors is an integer number (6100800).

Almost surely, 2^72302073 is an apocalyptic number.

It is an amenable number.

72302073 is a deficient number, since it is larger than the sum of its proper divisors (25310727).

72302073 is a wasteful number, since it uses less digits than its factorization.

72302073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 72302073 is about 8503.0625659229. The cubic root of 72302073 is about 416.5977465384.

The spelling of 72302073 in words is "seventy-two million, three hundred two thousand, seventy-three".