207253889 has 8 divisors (see below), whose sum is σ = 208441992. Its totient is φ = 206069760.

The previous prime is 207253873. The next prime is 207253901. The reversal of 207253889 is 988352702.

It can be written as a sum of positive squares in 4 ways, for example, as 60964864 + 146289025 = 7808^2 + 12095^2 .

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 207253889 - 2⁴ = 207253873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207253829) 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, 200117 + ... + 201149.

It is an arithmetic number, because the mean of its divisors is an integer number (26055249).

Almost surely, 2^207253889 is an apocalyptic number.

It is an amenable number.

207253889 is a deficient number, since it is larger than the sum of its proper divisors (1188103).

207253889 is a wasteful number, since it uses less digits than its factorization.

207253889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 207253889 is about 14396.3151188073. The cubic root of 207253889 is about 591.7899191047.

The spelling of 207253889 in words is "two hundred seven million, two hundred fifty-three thousand, eight hundred eighty-nine".