75070830 has 16 divisors (see below), whose sum is σ = 180170064. Its totient is φ = 20018880.

The previous prime is 75070823. The next prime is 75070841. The reversal of 75070830 is 3807057.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2502361 = 75070830 / (7 + 5 + 0 + 7 + 0 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251151 + ... + 1251210.

It is an arithmetic number, because the mean of its divisors is an integer number (11260629).

Almost surely, 2^75070830 is an apocalyptic number.

75070830 is an abundant number, since it is smaller than the sum of its proper divisors (105099234).

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

75070830 is a wasteful number, since it uses less digits than its factorization.

75070830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502371.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 75070830 is about 8664.3424447560. The cubic root of 75070830 is about 421.8490471826.

Adding to 75070830 its reverse (3807057), we get a palindrome (78877887).

The spelling of 75070830 in words is "seventy-five million, seventy thousand, eight hundred thirty".