73775072 has 96 divisors (see below), whose sum is σ = 176541120. Its totient is φ = 29675520.

The previous prime is 73775059. The next prime is 73775111. The reversal of 73775072 is 27057737.

It is a super-2 number, since 2×73775072² = 10885522497210368, which contains 22 as substring.

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, 266198 + ... + 266474.

It is an arithmetic number, because the mean of its divisors is an integer number (1838970).

Almost surely, 2^73775072 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 73775072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88270560).

73775072 is an abundant number, since it is smaller than the sum of its proper divisors (102766048).

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

73775072 is a wasteful number, since it uses less digits than its factorization.

73775072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 72030, while the sum is 38.

The square root of 73775072 is about 8589.2416428926. The cubic root of 73775072 is about 419.4078427596.

The spelling of 73775072 in words is "seventy-three million, seven hundred seventy-five thousand, seventy-two".