73020319 has 4 divisors (see below), whose sum is σ = 73292040. Its totient is φ = 72748600.

The previous prime is 73020313. The next prime is 73020323. The reversal of 73020319 is 91302037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91302037 = 31 ⋅2945227.

It is a cyclic number.

It is not a de Polignac number, because 73020319 - 2⁷ = 73020191 is a prime.

It is a super-2 number, since 2×73020319² = 10663933973723522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73020293 and 73020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73020313) 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, 135457 + ... + 135994.

It is an arithmetic number, because the mean of its divisors is an integer number (18323010).

Almost surely, 2^73020319 is an apocalyptic number.

73020319 is a deficient number, since it is larger than the sum of its proper divisors (271721).

73020319 is a wasteful number, since it uses less digits than its factorization.

73020319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271720.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 73020319 is about 8545.1927421212. The cubic root of 73020319 is about 417.9726922936.

The spelling of 73020319 in words is "seventy-three million, twenty thousand, three hundred nineteen".