395900878 has 4 divisors (see below), whose sum is σ = 593851320. Its totient is φ = 197950438.

The previous prime is 395900873. The next prime is 395900903. The reversal of 395900878 is 878009593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878009593 = 37 ⋅23729989.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395900873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98975218 + ... + 98975221.

It is an arithmetic number, because the mean of its divisors is an integer number (148462830).

Almost surely, 2^395900878 is an apocalyptic number.

395900878 is a deficient number, since it is larger than the sum of its proper divisors (197950442).

395900878 is a wasteful number, since it uses less digits than its factorization.

395900878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197950441.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 395900878 is about 19897.2580523046. The cubic root of 395900878 is about 734.2807705094.

The spelling of 395900878 in words is "three hundred ninety-five million, nine hundred thousand, eight hundred seventy-eight".