85878404 has 24 divisors (see below), whose sum is σ = 158504640. Its totient is φ = 40600224.

The previous prime is 85878361. The next prime is 85878409. The reversal of 85878404 is 40487858.

It is not an unprimeable number, because it can be changed into a prime (85878409) 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, 61862 + ... + 63234.

It is an arithmetic number, because the mean of its divisors is an integer number (6604360).

Almost surely, 2^85878404 is an apocalyptic number.

It is an amenable number.

85878404 is a deficient number, since it is larger than the sum of its proper divisors (72626236).

85878404 is a wasteful number, since it uses less digits than its factorization.

85878404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 85878404 is about 9267.0601595112. The cubic root of 85878404 is about 441.1923650403.

The spelling of 85878404 in words is "eighty-five million, eight hundred seventy-eight thousand, four hundred four".