85878130 has 16 divisors (see below), whose sum is σ = 166471704. Its totient is φ = 31708800.

The previous prime is 85878097. The next prime is 85878131. The reversal of 85878130 is 3187858.

It can be written as a sum of positive squares in 4 ways, for example, as 30658369 + 55219761 = 5537^2 + 7431^2 .

It is not an unprimeable number, because it can be changed into a prime (85878131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330171 + ... + 330430.

Almost surely, 2^85878130 is an apocalyptic number.

85878130 is a deficient number, since it is larger than the sum of its proper divisors (80593574).

85878130 is a wasteful number, since it uses less digits than its factorization.

85878130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660621.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 85878130 is about 9267.0453759545. The cubic root of 85878130 is about 441.1918958232.

The spelling of 85878130 in words is "eighty-five million, eight hundred seventy-eight thousand, one hundred thirty".