47381247 has 8 divisors (see below), whose sum is σ = 70194480. Its totient is φ = 31587480.

The previous prime is 47381207. The next prime is 47381263. The reversal of 47381247 is 74218374.

It is a happy number.

It is not a de Polignac number, because 47381247 - 2⁶ = 47381183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47381207) 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 in 7 ways as a sum of consecutive naturals, for example, 877404 + ... + 877457.

It is an arithmetic number, because the mean of its divisors is an integer number (8774310).

Almost surely, 2^47381247 is an apocalyptic number.

47381247 is a deficient number, since it is larger than the sum of its proper divisors (22813233).

47381247 is a wasteful number, since it uses less digits than its factorization.

47381247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754870 (or 1754864 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47381247 is about 6883.4037365245. The cubic root of 47381247 is about 361.8557645015.

The spelling of 47381247 in words is "forty-seven million, three hundred eighty-one thousand, two hundred forty-seven".