75086730 has 128 divisors (see below), whose sum is σ = 209986560. Its totient is φ = 19077120.

The previous prime is 75086723. The next prime is 75086761. The reversal of 75086730 is 3768057.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 774042 + ... + 774138.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^75086730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75086730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104993280).

75086730 is an abundant number, since it is smaller than the sum of its proper divisors (134899830).

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

75086730 is a wasteful number, since it uses less digits than its factorization.

75086730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 75086730 is about 8665.2599499380. The cubic root of 75086730 is about 421.8788276196.

The spelling of 75086730 in words is "seventy-five million, eighty-six thousand, seven hundred thirty".