86723898 has 16 divisors (see below), whose sum is σ = 174043296. Its totient is φ = 28808720.

The previous prime is 86723887. The next prime is 86723921. The reversal of 86723898 is 89832768.

It is a self number, because there is not a number n which added to its sum of digits gives 86723898.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22908 + ... + 26423.

It is an arithmetic number, because the mean of its divisors is an integer number (10877706).

Almost surely, 2^86723898 is an apocalyptic number.

86723898 is an abundant number, since it is smaller than the sum of its proper divisors (87319398).

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

86723898 is a wasteful number, since it uses less digits than its factorization.

86723898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629.

The product of its digits is 1161216, while the sum is 51.

The square root of 86723898 is about 9312.5666709023. The cubic root of 86723898 is about 442.6355217066.

The spelling of 86723898 in words is "eighty-six million, seven hundred twenty-three thousand, eight hundred ninety-eight".