86650989 has 8 divisors (see below), whose sum is σ = 122330880. Its totient is φ = 54369216.

The previous prime is 86650987. The next prime is 86650997. The reversal of 86650989 is 98905668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86650989 - 2¹ = 86650987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1699039 = 86650989 / (8 + 6 + 6 + 5 + 0 + 9 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86650987) 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, 849469 + ... + 849570.

It is an arithmetic number, because the mean of its divisors is an integer number (15291360).

Almost surely, 2^86650989 is an apocalyptic number.

It is an amenable number.

86650989 is a deficient number, since it is larger than the sum of its proper divisors (35679891).

86650989 is a wasteful number, since it uses less digits than its factorization.

86650989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699059.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 86650989 is about 9308.6512986576. The cubic root of 86650989 is about 442.5114453294.

The spelling of 86650989 in words is "eighty-six million, six hundred fifty thousand, nine hundred eighty-nine".