75637072 has 40 divisors (see below), whose sum is σ = 170243072. Its totient is φ = 31881600.

The previous prime is 75637061. The next prime is 75637073. The reversal of 75637072 is 27073657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75637073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1297 + ... + 12367.

Almost surely, 2^75637072 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 75637072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85121536).

75637072 is an abundant number, since it is smaller than the sum of its proper divisors (94606000).

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

75637072 is a wasteful number, since it uses less digits than its factorization.

75637072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147 (or 11141 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 75637072 is about 8696.9576289643. The cubic root of 75637072 is about 422.9070283593.

The spelling of 75637072 in words is "seventy-five million, six hundred thirty-seven thousand, seventy-two".