247413406 has 4 divisors (see below), whose sum is σ = 371120112. Its totient is φ = 123706702.

The previous prime is 247413403. The next prime is 247413407. The reversal of 247413406 is 604314742.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×247413406² = 122426786937041672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247413401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61853350 + ... + 61853353.

It is an arithmetic number, because the mean of its divisors is an integer number (92780028).

Almost surely, 2^247413406 is an apocalyptic number.

247413406 is a deficient number, since it is larger than the sum of its proper divisors (123706706).

247413406 is a wasteful number, since it uses less digits than its factorization.

247413406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123706705.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 247413406 is about 15729.3803438025. The cubic root of 247413406 is about 627.7803859053.

The spelling of 247413406 in words is "two hundred forty-seven million, four hundred thirteen thousand, four hundred six".