75905849 has 4 divisors (see below), whose sum is σ = 76240464. Its totient is φ = 75571236.

The previous prime is 75905839. The next prime is 75905857. The reversal of 75905849 is 94850957.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75905849 - 2¹⁶ = 75840313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75905839) 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 3 ways as a sum of consecutive naturals, for example, 166967 + ... + 167420.

It is an arithmetic number, because the mean of its divisors is an integer number (19060116).

Almost surely, 2^75905849 is an apocalyptic number.

It is an amenable number.

75905849 is a deficient number, since it is larger than the sum of its proper divisors (334615).

75905849 is a wasteful number, since it uses less digits than its factorization.

75905849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334614.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 75905849 is about 8712.3962834573. The cubic root of 75905849 is about 423.4073707833.

The spelling of 75905849 in words is "seventy-five million, nine hundred five thousand, eight hundred forty-nine".