73034639 has 4 divisors (see below), whose sum is σ = 73053024. Its totient is φ = 73016256.

The previous prime is 73034617. The next prime is 73034657. The reversal of 73034639 is 93643037.

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

It is a cyclic number.

It is not a de Polignac number, because 73034639 - 2¹⁶ = 72969103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73034599 and 73034608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73034699) 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, 482 + ... + 12095.

It is an arithmetic number, because the mean of its divisors is an integer number (18263256).

Almost surely, 2^73034639 is an apocalyptic number.

73034639 is a deficient number, since it is larger than the sum of its proper divisors (18385).

73034639 is a wasteful number, since it uses less digits than its factorization.

73034639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 73034639 is about 8546.0305990559. The cubic root of 73034639 is about 418.0000133544. Note that the first 4 decimals are identical.

The spelling of 73034639 in words is "seventy-three million, thirty-four thousand, six hundred thirty-nine".