73673636 has 6 divisors (see below), whose sum is σ = 128928870. Its totient is φ = 36836816.

The previous prime is 73673629. The next prime is 73673641. The reversal of 73673636 is 63637637.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 12208036 = 7840^2 + 3494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73673593 and 73673602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9209201 + ... + 9209208.

It is an arithmetic number, because the mean of its divisors is an integer number (21488145).

Almost surely, 2^73673636 is an apocalyptic number.

It is an amenable number.

73673636 is a deficient number, since it is larger than the sum of its proper divisors (55255234).

73673636 is a wasteful number, since it uses less digits than its factorization.

73673636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18418413 (or 18418411 counting only the distinct ones).

The product of its digits is 285768, while the sum is 41.

The square root of 73673636 is about 8583.3347831714. The cubic root of 73673636 is about 419.2155349530.

The spelling of 73673636 in words is "seventy-three million, six hundred seventy-three thousand, six hundred thirty-six".