86153918 has 4 divisors (see below), whose sum is σ = 129230880. Its totient is φ = 43076958.

The previous prime is 86153911. The next prime is 86153941. The reversal of 86153918 is 81935168.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86153911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21538478 + ... + 21538481.

It is an arithmetic number, because the mean of its divisors is an integer number (32307720).

Almost surely, 2^86153918 is an apocalyptic number.

86153918 is a deficient number, since it is larger than the sum of its proper divisors (43076962).

86153918 is a wasteful number, since it uses less digits than its factorization.

86153918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43076961.

The product of its digits is 51840, while the sum is 41.

The square root of 86153918 is about 9281.9134880691. The cubic root of 86153918 is about 441.6636706256.

The spelling of 86153918 in words is "eighty-six million, one hundred fifty-three thousand, nine hundred eighteen".