89909986 has 8 divisors (see below), whose sum is σ = 134979804. Its totient is φ = 44916720.

The previous prime is 89909971. The next prime is 89909987. The reversal of 89909986 is 68990998.

It can be written as a sum of positive squares in 2 ways, for example, as 89586225 + 323761 = 9465^2 + 569^2 .

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

It is a super-3 number, since 3×89909986³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89909986.

It is not an unprimeable number, because it can be changed into a prime (89909987) 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, 16105 + ... + 20956.

Almost surely, 2^89909986 is an apocalyptic number.

89909986 is a deficient number, since it is larger than the sum of its proper divisors (45069818).

89909986 is a wasteful number, since it uses less digits than its factorization.

89909986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38276.

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 89909986 is about 9482.0876393334. The cubic root of 89909986 is about 447.9910214240.

The spelling of 89909986 in words is "eighty-nine million, nine hundred nine thousand, nine hundred eighty-six".