86898899 has 4 divisors (see below), whose sum is σ = 90677136. Its totient is φ = 83120664.

The previous prime is 86898887. The next prime is 86898901. The reversal of 86898899 is 99889868.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86898899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86898809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1889084 + ... + 1889129.

It is an arithmetic number, because the mean of its divisors is an integer number (22669284).

Almost surely, 2^86898899 is an apocalyptic number.

86898899 is a deficient number, since it is larger than the sum of its proper divisors (3778237).

86898899 is a wasteful number, since it uses less digits than its factorization.

86898899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778236.

The product of its digits is 17915904, while the sum is 65.

The square root of 86898899 is about 9321.9578952063. The cubic root of 86898899 is about 442.9330545109.

The spelling of 86898899 in words is "eighty-six million, eight hundred ninety-eight thousand, eight hundred ninety-nine".