47813249 has 8 divisors (see below), whose sum is σ = 52821120. Its totient is φ = 42915600.

The previous prime is 47813243. The next prime is 47813263. The reversal of 47813249 is 94231874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47813249 is a prime.

It is a super-2 number, since 2×47813249² = 4572213559872002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47813243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26642 + ... + 28379.

It is an arithmetic number, because the mean of its divisors is an integer number (6602640).

Almost surely, 2^47813249 is an apocalyptic number.

It is an amenable number.

47813249 is a deficient number, since it is larger than the sum of its proper divisors (5007871).

47813249 is a wasteful number, since it uses less digits than its factorization.

47813249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55111.

The product of its digits is 48384, while the sum is 38.

The square root of 47813249 is about 6914.7125030619. The cubic root of 47813249 is about 362.9521878202.

The spelling of 47813249 in words is "forty-seven million, eight hundred thirteen thousand, two hundred forty-nine".