85917378 has 16 divisors (see below), whose sum is σ = 171984096. Its totient is φ = 28614240.

The previous prime is 85917353. The next prime is 85917379. The reversal of 85917378 is 87371958.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85917379) 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, 2118 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (10749006).

Almost surely, 2^85917378 is an apocalyptic number.

85917378 is an abundant number, since it is smaller than the sum of its proper divisors (86066718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85917378 is a wasteful number, since it uses less digits than its factorization.

85917378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449.

The product of its digits is 423360, while the sum is 48.

The square root of 85917378 is about 9269.1627453616. The cubic root of 85917378 is about 441.2590967209.

The spelling of 85917378 in words is "eighty-five million, nine hundred seventeen thousand, three hundred seventy-eight".