247993273 has 16 divisors (see below), whose sum is σ = 283226112. Its totient is φ = 215082000.

The previous prime is 247993267. The next prime is 247993283. The reversal of 247993273 is 372399742.

It is a happy number.

247993273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 247993273 - 2²¹ = 245896121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247993283) 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, 19090 + ... + 29332.

It is an arithmetic number, because the mean of its divisors is an integer number (17701632).

Almost surely, 2^247993273 is an apocalyptic number.

It is an amenable number.

247993273 is a deficient number, since it is larger than the sum of its proper divisors (35232839).

247993273 is a wasteful number, since it uses less digits than its factorization.

247993273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356.

The product of its digits is 571536, while the sum is 46.

The square root of 247993273 is about 15747.8021641117. The cubic root of 247993273 is about 628.2704497636.

The spelling of 247993273 in words is "two hundred forty-seven million, nine hundred ninety-three thousand, two hundred seventy-three".