73447612 has 48 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 30139200.

The previous prime is 73447573. The next prime is 73447631. The reversal of 73447612 is 21674437.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63237 + ... + 64387.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 2^73447612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73447612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76640256).

73447612 is an abundant number, since it is smaller than the sum of its proper divisors (79832900).

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

73447612 is a wasteful number, since it uses less digits than its factorization.

73447612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1256 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 73447612 is about 8570.1582249104. The cubic root of 73447612 is about 418.7863907782.

The spelling of 73447612 in words is "seventy-three million, four hundred forty-seven thousand, six hundred twelve".