247480093 has 16 divisors (see below), whose sum is σ = 290093056. Its totient is φ = 206705520.

The previous prime is 247480081. The next prime is 247480097. The reversal of 247480093 is 390084742.

It is a happy number.

It is not a de Polignac number, because 247480093 - 2¹⁷ = 247349021 is a prime.

It is a super-2 number, since 2×247480093² = 122492792862577298, which contains 22 as substring.

It is the 15732-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247480097) by changing a digit.

It is a nontrivial repunit in base 15731.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189280 + ... + 190582.

It is an arithmetic number, because the mean of its divisors is an integer number (18130816).

Almost surely, 2^247480093 is an apocalyptic number.

It is an amenable number.

247480093 is a deficient number, since it is larger than the sum of its proper divisors (42612963).

247480093 is a wasteful number, since it uses less digits than its factorization.

247480093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 247480093 is about 15731.5000238375. The cubic root of 247480093 is about 627.8367841289.

The spelling of 247480093 in words is "two hundred forty-seven million, four hundred eighty thousand, ninety-three".