247985093 has 8 divisors (see below), whose sum is σ = 261217920. Its totient is φ = 234770400.

The previous prime is 247985077. The next prime is 247985099. The reversal of 247985093 is 390589742.

It is a happy number.

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 247985093 - 2⁴ = 247985077 is a prime.

It is a super-2 number, since 2×247985093² = 122993212700437298, which contains 22 as substring.

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 (247985099) 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, 30596 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (32652240).

Almost surely, 2^247985093 is an apocalyptic number.

It is an amenable number.

247985093 is a deficient number, since it is larger than the sum of its proper divisors (13232827).

247985093 is a wasteful number, since it uses less digits than its factorization.

247985093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 247985093 is about 15747.5424431878. The cubic root of 247985093 is about 628.2635419031.

The spelling of 247985093 in words is "two hundred forty-seven million, nine hundred eighty-five thousand, ninety-three".