73803073 has 4 divisors (see below), whose sum is σ = 74814148. Its totient is φ = 72792000.

The previous prime is 73803071. The next prime is 73803077. The reversal of 73803073 is 37030837.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46009089 + 27793984 = 6783^2 + 5272^2 .

It is a cyclic number.

It is not a de Polignac number, because 73803073 - 2¹ = 73803071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73803071) 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, 505428 + ... + 505573.

It is an arithmetic number, because the mean of its divisors is an integer number (18703537).

Almost surely, 2^73803073 is an apocalyptic number.

73803073 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

73803073 is a deficient number, since it is larger than the sum of its proper divisors (1011075).

73803073 is a wasteful number, since it uses less digits than its factorization.

73803073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011074.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 73803073 is about 8590.8714924622. The cubic root of 73803073 is about 419.4608975075.

The spelling of 73803073 in words is "seventy-three million, eight hundred three thousand, seventy-three".