75981928 has 32 divisors (see below), whose sum is σ = 157619520. Its totient is φ = 34048000.

The previous prime is 75981923. The next prime is 75981929. The reversal of 75981928 is 82918957.

It is not an unprimeable number, because it can be changed into a prime (75981923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168 + ... + 12328.

It is an arithmetic number, because the mean of its divisors is an integer number (4925610).

Almost surely, 2^75981928 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 75981928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78809760).

75981928 is an abundant number, since it is smaller than the sum of its proper divisors (81637592).

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

75981928 is a wasteful number, since it uses less digits than its factorization.

75981928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12249 (or 12245 counting only the distinct ones).

The product of its digits is 362880, while the sum is 49.

The square root of 75981928 is about 8716.7613251712. The cubic root of 75981928 is about 423.5487812886.

The spelling of 75981928 in words is "seventy-five million, nine hundred eighty-one thousand, nine hundred twenty-eight".