247940006 has 8 divisors (see below), whose sum is σ = 391484280. Its totient is φ = 117445248.

The previous prime is 247940003. The next prime is 247940039. The reversal of 247940006 is 600049742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247940006² = 122948493150560072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247940003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3262331 + ... + 3262406.

It is an arithmetic number, because the mean of its divisors is an integer number (48935535).

Almost surely, 2^247940006 is an apocalyptic number.

247940006 is a deficient number, since it is larger than the sum of its proper divisors (143544274).

247940006 is a wasteful number, since it uses less digits than its factorization.

247940006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524758.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 247940006 is about 15746.1108214060. The cubic root of 247940006 is about 628.2254640293.

Adding to 247940006 its reverse (600049742), we get a palindrome (847989748).

The spelling of 247940006 in words is "two hundred forty-seven million, nine hundred forty thousand, six".