95878221 has 4 divisors (see below), whose sum is σ = 127837632. Its totient is φ = 63918812.

The previous prime is 95878201. The next prime is 95878229. The reversal of 95878221 is 12287859.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12287859 = 3 ⋅4095953.

It is a cyclic number.

It is not a de Polignac number, because 95878221 - 2⁷ = 95878093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (95878229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15979701 + ... + 15979706.

It is an arithmetic number, because the mean of its divisors is an integer number (31959408).

Almost surely, 2^95878221 is an apocalyptic number.

It is an amenable number.

95878221 is a deficient number, since it is larger than the sum of its proper divisors (31959411).

95878221 is a wasteful number, since it uses less digits than its factorization.

95878221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31959410.

The product of its digits is 80640, while the sum is 42.

The square root of 95878221 is about 9791.7424904866. The cubic root of 95878221 is about 457.6920009899.

The spelling of 95878221 in words is "ninety-five million, eight hundred seventy-eight thousand, two hundred twenty-one".