47070287 has 4 divisors (see below), whose sum is σ = 51349416. Its totient is φ = 42791160.

The previous prime is 47070241. The next prime is 47070301. The reversal of 47070287 is 78207074.

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

It is a cyclic number.

It is not a de Polignac number, because 47070287 - 2¹² = 47066191 is a prime.

It is a super-2 number, since 2×47070287² = 4431223836524738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47070217) 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, 2139548 + ... + 2139569.

It is an arithmetic number, because the mean of its divisors is an integer number (12837354).

Almost surely, 2^47070287 is an apocalyptic number.

47070287 is a deficient number, since it is larger than the sum of its proper divisors (4279129).

47070287 is a wasteful number, since it uses less digits than its factorization.

47070287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279128.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 47070287 is about 6860.7788916420. The cubic root of 47070287 is about 361.0624145529.

The spelling of 47070287 in words is "forty-seven million, seventy thousand, two hundred eighty-seven".