73661712 has 40 divisors (see below), whose sum is σ = 191118720. Its totient is φ = 24447360.

The previous prime is 73661701. The next prime is 73661713. The reversal of 73661712 is 21716637.

It is not an unprimeable number, because it can be changed into a prime (73661713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8262 + ... + 14682.

It is an arithmetic number, because the mean of its divisors is an integer number (4777968).

Almost surely, 2^73661712 is an apocalyptic number.

It is an amenable number.

73661712 is an abundant number, since it is smaller than the sum of its proper divisors (117457008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73661712 is a wasteful number, since it uses less digits than its factorization.

73661712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671 (or 6665 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 73661712 is about 8582.6401532396. The cubic root of 73661712 is about 419.1929172026.

The spelling of 73661712 in words is "seventy-three million, six hundred sixty-one thousand, seven hundred twelve".