86804280 has 96 divisors (see below), whose sum is σ = 284974560. Its totient is φ = 22913280.

The previous prime is 86804239. The next prime is 86804287. The reversal of 86804280 is 8240868.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86804287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35910 + ... + 38250.

It is an arithmetic number, because the mean of its divisors is an integer number (2968485).

Almost surely, 2^86804280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86804280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142487280).

86804280 is an abundant number, since it is smaller than the sum of its proper divisors (198170280).

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

86804280 is a wasteful number, since it uses less digits than its factorization.

86804280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 86804280 is about 9316.8814525033. The cubic root of 86804280 is about 442.7722350474.

The spelling of 86804280 in words is "eighty-six million, eight hundred four thousand, two hundred eighty".