73043712 has 162 divisors, whose sum is σ = 245365848. Its totient is φ = 20837376.

The previous prime is 73043693. The next prime is 73043717. The reversal of 73043712 is 21734037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73043717) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112573 + ... + 113219.

It is an arithmetic number, because the mean of its divisors is an integer number (1514604).

Almost surely, 2^73043712 is an apocalyptic number.

73043712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73043712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122682924).

73043712 is an abundant number, since it is smaller than the sum of its proper divisors (172322136).

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

73043712 is a wasteful number, since it uses less digits than its factorization.

73043712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 73043712 is about 8546.5614138085. The cubic root of 73043712 is about 418.0173218404.

Adding to 73043712 its reverse (21734037), we get a palindrome (94777749).

The spelling of 73043712 in words is "seventy-three million, forty-three thousand, seven hundred twelve".