247680105 has 16 divisors (see below), whose sum is σ = 417145920. Its totient is φ = 125143488.

The previous prime is 247680073. The next prime is 247680113. The reversal of 247680105 is 501086742.

247680105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247680105 - 2⁵ = 247680073 is a prime.

It is a super-2 number, since 2×247680105² = 122690868825622050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434242 + ... + 434811.

It is an arithmetic number, because the mean of its divisors is an integer number (26071620).

Almost surely, 2^247680105 is an apocalyptic number.

It is an amenable number.

247680105 is a deficient number, since it is larger than the sum of its proper divisors (169465815).

247680105 is a wasteful number, since it uses less digits than its factorization.

247680105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869080.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 247680105 is about 15737.8557942307. The cubic root of 247680105 is about 628.0058766202.

The spelling of 247680105 in words is "two hundred forty-seven million, six hundred eighty thousand, one hundred five".