207008989 has 8 divisors (see below), whose sum is σ = 233615520. Its totient is φ = 181700400.

The previous prime is 207008981. The next prime is 207009013. The reversal of 207008989 is 989800702.

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

It is a cyclic number.

It is not a de Polignac number, because 207008989 - 2³ = 207008981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207008981) 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, 324147 + ... + 324784.

It is an arithmetic number, because the mean of its divisors is an integer number (29201940).

Almost surely, 2^207008989 is an apocalyptic number.

207008989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

207008989 is a deficient number, since it is larger than the sum of its proper divisors (26606531).

207008989 is a wasteful number, since it uses less digits than its factorization.

207008989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648971.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 207008989 is about 14387.8069558915. The cubic root of 207008989 is about 591.5567325297.

The spelling of 207008989 in words is "two hundred seven million, eight thousand, nine hundred eighty-nine".