86774568 has 32 divisors (see below), whose sum is σ = 221032800. Its totient is φ = 28378688.

The previous prime is 86774563. The next prime is 86774599. The reversal of 86774568 is 86547768.

It is a self number, because there is not a number n which added to its sum of digits gives 86774568.

It is not an unprimeable number, because it can be changed into a prime (86774563) 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, 32838 + ... + 35381.

It is an arithmetic number, because the mean of its divisors is an integer number (6907275).

Almost surely, 2^86774568 is an apocalyptic number.

It is an amenable number.

86774568 is an abundant number, since it is smaller than the sum of its proper divisors (134258232).

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

86774568 is a wasteful number, since it uses less digits than its factorization.

86774568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68281 (or 68277 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 86774568 is about 9315.2867910763. The cubic root of 86774568 is about 442.7217108492.

The spelling of 86774568 in words is "eighty-six million, seven hundred seventy-four thousand, five hundred sixty-eight".