73331648 has 56 divisors (see below), whose sum is σ = 159763968. Its totient is φ = 33186816.

The previous prime is 73331617. The next prime is 73331651. The reversal of 73331648 is 84613337.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43265 + ... + 44927.

It is an arithmetic number, because the mean of its divisors is an integer number (2852928).

Almost surely, 2^73331648 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 73331648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79881984).

73331648 is an abundant number, since it is smaller than the sum of its proper divisors (86432320).

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

73331648 is a wasteful number, since it uses less digits than its factorization.

73331648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1731 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 73331648 is about 8563.3899829448. The cubic root of 73331648 is about 418.5658720306.

The spelling of 73331648 in words is "seventy-three million, three hundred thirty-one thousand, six hundred forty-eight".