73081732 has 12 divisors (see below), whose sum is σ = 128022300. Its totient is φ = 36503936.

The previous prime is 73081717. The next prime is 73081747. The reversal of 73081732 is 23718037.

It is an interprime number because it is at equal distance from previous prime (73081717) and next prime (73081747).

It can be written as a sum of positive squares in 2 ways, for example, as 67634176 + 5447556 = 8224^2 + 2334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73081694 and 73081703.

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 in 3 ways as a sum of consecutive naturals, for example, 4513 + ... + 12904.

It is an arithmetic number, because the mean of its divisors is an integer number (10668525).

Almost surely, 2^73081732 is an apocalyptic number.

It is an amenable number.

73081732 is a deficient number, since it is larger than the sum of its proper divisors (54940568).

73081732 is a wasteful number, since it uses less digits than its factorization.

73081732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18470 (or 18468 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 73081732 is about 8548.7854108054. The cubic root of 73081732 is about 418.0898366924.

Adding to 73081732 its reverse (23718037), we get a palindrome (96799769).

The spelling of 73081732 in words is "seventy-three million, eighty-one thousand, seven hundred thirty-two".