85077878 has 8 divisors (see below), whose sum is σ = 127672200. Its totient is φ = 42520480.

The previous prime is 85077847. The next prime is 85077901. The reversal of 85077878 is 87877058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2483 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (15959025).

Almost surely, 2^85077878 is an apocalyptic number.

85077878 is a deficient number, since it is larger than the sum of its proper divisors (42594322).

85077878 is a wasteful number, since it uses less digits than its factorization.

85077878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18462.

The product of its (nonzero) digits is 878080, while the sum is 50.

The square root of 85077878 is about 9223.7670178729. The cubic root of 85077878 is about 439.8172071292.

Adding to 85077878 its product of nonzero digits (878080), we get a palindrome (85955958).

The spelling of 85077878 in words is "eighty-five million, seventy-seven thousand, eight hundred seventy-eight".