75775087 has 8 divisors (see below), whose sum is σ = 79174656. Its totient is φ = 72384312.

The previous prime is 75775079. The next prime is 75775121. The reversal of 75775087 is 78057757.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75775087 - 2³ = 75775079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75775027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20538 + ... + 23944.

It is an arithmetic number, because the mean of its divisors is an integer number (9896832).

Almost surely, 2^75775087 is an apocalyptic number.

75775087 is a deficient number, since it is larger than the sum of its proper divisors (3399569).

75775087 is a wasteful number, since it uses less digits than its factorization.

75775087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397.

The product of its (nonzero) digits is 480200, while the sum is 46.

The square root of 75775087 is about 8704.8886839523. Note that the first 3 decimals coincide. The cubic root of 75775087 is about 423.1640982804.

The spelling of 75775087 in words is "seventy-five million, seven hundred seventy-five thousand, eighty-seven".