86953578 has 16 divisors (see below), whose sum is σ = 174034560. Its totient is φ = 28963296.

The previous prime is 86953577. The next prime is 86953583. The reversal of 86953578 is 87535968.

It is a self number, because there is not a number n which added to its sum of digits gives 86953578.

It is not an unprimeable number, because it can be changed into a prime (86953577) 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, 5151 + ... + 14157.

It is an arithmetic number, because the mean of its divisors is an integer number (10877160).

Almost surely, 2^86953578 is an apocalyptic number.

86953578 is an abundant number, since it is smaller than the sum of its proper divisors (87080982).

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

86953578 is a wasteful number, since it uses less digits than its factorization.

86953578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621.

The product of its digits is 1814400, while the sum is 51.

The square root of 86953578 is about 9324.8902406409. The cubic root of 86953578 is about 443.0259366179.

The spelling of 86953578 in words is "eighty-six million, nine hundred fifty-three thousand, five hundred seventy-eight".