73731732 has 12 divisors (see below), whose sum is σ = 172040736. Its totient is φ = 24577240.

The previous prime is 73731731. The next prime is 73731809. The reversal of 73731732 is 23713737.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 73731693 and 73731702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73731731) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3072144 + ... + 3072167.

It is an arithmetic number, because the mean of its divisors is an integer number (14336728).

Almost surely, 2^73731732 is an apocalyptic number.

It is an amenable number.

73731732 is an abundant number, since it is smaller than the sum of its proper divisors (98309004).

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

73731732 is a wasteful number, since it uses less digits than its factorization.

73731732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6144318 (or 6144316 counting only the distinct ones).

The product of its digits is 18522, while the sum is 33.

The square root of 73731732 is about 8586.7183487057. The cubic root of 73731732 is about 419.3256980458.

The spelling of 73731732 in words is "seventy-three million, seven hundred thirty-one thousand, seven hundred thirty-two".