247094861 has 16 divisors (see below), whose sum is σ = 271160064. Its totient is φ = 223781184.

The previous prime is 247094849. The next prime is 247094863. The reversal of 247094861 is 168490742.

It is a cyclic number.

It is not a de Polignac number, because 247094861 - 2¹⁰ = 247093837 is a prime.

It is a super-2 number, since 2×247094861² = 122111740665218642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247094863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319271 + ... + 320043.

It is an arithmetic number, because the mean of its divisors is an integer number (16947504).

Almost surely, 2^247094861 is an apocalyptic number.

It is an amenable number.

247094861 is a deficient number, since it is larger than the sum of its proper divisors (24065203).

247094861 is a wasteful number, since it uses less digits than its factorization.

247094861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 247094861 is about 15719.2512862413. The cubic root of 247094861 is about 627.5108475768.

The spelling of 247094861 in words is "two hundred forty-seven million, ninety-four thousand, eight hundred sixty-one".