75093780 has 96 divisors (see below), whose sum is σ = 221921280. Its totient is φ = 18944640.

The previous prime is 75093779. The next prime is 75093793. The reversal of 75093780 is 8739057.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86991 + ... + 87849.

It is an arithmetic number, because the mean of its divisors is an integer number (2311680).

Almost surely, 2^75093780 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 75093780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110960640).

75093780 is an abundant number, since it is smaller than the sum of its proper divisors (146827500).

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

75093780 is a wasteful number, since it uses less digits than its factorization.

75093780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 75093780 is about 8665.6667371876. Note that the first 3 decimals coincide. The cubic root of 75093780 is about 421.8920308077.

The spelling of 75093780 in words is "seventy-five million, ninety-three thousand, seven hundred eighty".