73236609 has 16 divisors (see below), whose sum is σ = 109132800. Its totient is φ = 48539088.

The previous prime is 73236607. The next prime is 73236617. The reversal of 73236609 is 90663237.

It is not a de Polignac number, because 73236609 - 2¹ = 73236607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73236607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3169 + ... + 12510.

It is an arithmetic number, because the mean of its divisors is an integer number (6820800).

Almost surely, 2^73236609 is an apocalyptic number.

It is an amenable number.

73236609 is a deficient number, since it is larger than the sum of its proper divisors (35896191).

73236609 is a wasteful number, since it uses less digits than its factorization.

73236609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15861 (or 15855 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 73236609 is about 8557.8390379815. The cubic root of 73236609 is about 418.3849711481.

The spelling of 73236609 in words is "seventy-three million, two hundred thirty-six thousand, six hundred nine".