86650689 has 4 divisors (see below), whose sum is σ = 115534256. Its totient is φ = 57767124.

The previous prime is 86650679. The next prime is 86650721. The reversal of 86650689 is 98605668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 86650689 - 2⁸ = 86650433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86650609) 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, 14441779 + ... + 14441784.

It is an arithmetic number, because the mean of its divisors is an integer number (28883564).

Almost surely, 2^86650689 is an apocalyptic number.

It is an amenable number.

86650689 is a deficient number, since it is larger than the sum of its proper divisors (28883567).

86650689 is a wasteful number, since it uses less digits than its factorization.

86650689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28883566.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 86650689 is about 9308.6351846014. The cubic root of 86650689 is about 442.5109346463.

The spelling of 86650689 in words is "eighty-six million, six hundred fifty thousand, six hundred eighty-nine".