247804797 has 16 divisors (see below), whose sum is σ = 343160640. Its totient is φ = 158871552.

The previous prime is 247804789. The next prime is 247804807. The reversal of 247804797 is 797408742.

It is not a de Polignac number, because 247804797 - 2³ = 247804789 is a prime.

It is a super-2 number, since 2×247804797² = 122814434832422418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247800797) 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, 16818 + ... + 27900.

It is an arithmetic number, because the mean of its divisors is an integer number (21447540).

Almost surely, 2^247804797 is an apocalyptic number.

It is an amenable number.

247804797 is a deficient number, since it is larger than the sum of its proper divisors (95355843).

247804797 is a wasteful number, since it uses less digits than its factorization.

247804797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11372.

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 247804797 is about 15741.8168265293. The cubic root of 247804797 is about 628.1112466383. Note that the first 3 decimals are identical.

The spelling of 247804797 in words is "two hundred forty-seven million, eight hundred four thousand, seven hundred ninety-seven".