75891642 has 16 divisors (see below), whose sum is σ = 151882752. Its totient is φ = 25280640.

The previous prime is 75891619. The next prime is 75891649. The reversal of 75891642 is 24619857.

It is a junction number, because it is equal to n+sod(n) for n = 75891594 and 75891603.

It is not an unprimeable number, because it can be changed into a prime (75891649) 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, 8967 + ... + 15237.

It is an arithmetic number, because the mean of its divisors is an integer number (9492672).

Almost surely, 2^75891642 is an apocalyptic number.

75891642 is an abundant number, since it is smaller than the sum of its proper divisors (75991110).

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

75891642 is a wasteful number, since it uses less digits than its factorization.

75891642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293.

The product of its digits is 120960, while the sum is 42.

The square root of 75891642 is about 8711.5809127850. The cubic root of 75891642 is about 423.3809533028.

The spelling of 75891642 in words is "seventy-five million, eight hundred ninety-one thousand, six hundred forty-two".