80085870 has 96 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 20664000.

The previous prime is 80085847. The next prime is 80085877. The reversal of 80085870 is 7858008.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80085877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 530295 + ... + 530445.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^80085870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80085870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107557632).

80085870 is an abundant number, since it is smaller than the sum of its proper divisors (135029394).

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

80085870 is a wasteful number, since it uses less digits than its factorization.

80085870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 80085870 is about 8949.0709014959. The cubic root of 80085870 is about 431.0410506350.

The spelling of 80085870 in words is "eighty million, eighty-five thousand, eight hundred seventy".