73136709 has 8 divisors (see below), whose sum is σ = 108350720. Its totient is φ = 48757788.

The previous prime is 73136689. The next prime is 73136741. The reversal of 73136709 is 90763137.

It is not a de Polignac number, because 73136709 - 2¹⁷ = 73005637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73136779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354357 + ... + 1354410.

It is an arithmetic number, because the mean of its divisors is an integer number (13543840).

Almost surely, 2^73136709 is an apocalyptic number.

It is an amenable number.

73136709 is a deficient number, since it is larger than the sum of its proper divisors (35214011).

73136709 is a wasteful number, since it uses less digits than its factorization.

73136709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708776 (or 2708770 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 73136709 is about 8552.0002923293. Note that the first 3 decimals coincide. The cubic root of 73136709 is about 418.1946488573.

The spelling of 73136709 in words is "seventy-three million, one hundred thirty-six thousand, seven hundred nine".