75897774 has 24 divisors (see below), whose sum is σ = 164815560. Its totient is φ = 25242288.

The previous prime is 75897751. The next prime is 75897781. The reversal of 75897774 is 47779857.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75897774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3892 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (6867315).

Almost surely, 2^75897774 is an apocalyptic number.

75897774 is an abundant number, since it is smaller than the sum of its proper divisors (88917786).

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

75897774 is a wasteful number, since it uses less digits than its factorization.

75897774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504 (or 9501 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 54.

The square root of 75897774 is about 8711.9328509809. The cubic root of 75897774 is about 423.3923559730.

The spelling of 75897774 in words is "seventy-five million, eight hundred ninety-seven thousand, seven hundred seventy-four".