239884973 has 16 divisors (see below), whose sum is σ = 252141120. Its totient is φ = 228009600.

The previous prime is 239884969. The next prime is 239884987. The reversal of 239884973 is 379488932.

It is a cyclic number.

It is not a de Polignac number, because 239884973 - 2² = 239884969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239884903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316511 + ... + 317267.

It is an arithmetic number, because the mean of its divisors is an integer number (15758820).

Almost surely, 2^239884973 is an apocalyptic number.

It is an amenable number.

239884973 is a deficient number, since it is larger than the sum of its proper divisors (12256147).

239884973 is a wasteful number, since it uses less digits than its factorization.

239884973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its digits is 2612736, while the sum is 53.

The square root of 239884973 is about 15488.2204594330. The cubic root of 239884973 is about 621.3472032049.

The spelling of 239884973 in words is "two hundred thirty-nine million, eight hundred eighty-four thousand, nine hundred seventy-three".