247899404 has 12 divisors (see below), whose sum is σ = 435640800. Its totient is φ = 123430608.

The previous prime is 247899367. The next prime is 247899409. The reversal of 247899404 is 404998742.

It is a super-2 number, since 2×247899404² = 122908229007110432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247899409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128699 + ... + 130610.

It is an arithmetic number, because the mean of its divisors is an integer number (36303400).

Almost surely, 2^247899404 is an apocalyptic number.

It is an amenable number.

247899404 is a deficient number, since it is larger than the sum of its proper divisors (187741396).

247899404 is a wasteful number, since it uses less digits than its factorization.

247899404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259552 (or 259550 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 247899404 is about 15744.8214978767. The cubic root of 247899404 is about 628.1911699768.

The spelling of 247899404 in words is "two hundred forty-seven million, eight hundred ninety-nine thousand, four hundred four".