47021146 has 8 divisors (see below), whose sum is σ = 70562484. Its totient is φ = 23500320.

The previous prime is 47021129. The next prime is 47021147. The reversal of 47021146 is 64112074.

It can be written as a sum of positive squares in 2 ways, for example, as 40182921 + 6838225 = 6339^2 + 2615^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 47021146.

It is not an unprimeable number, because it can be changed into a prime (47021147) 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, 3526 + ... + 10318.

Almost surely, 2^47021146 is an apocalyptic number.

47021146 is a deficient number, since it is larger than the sum of its proper divisors (23541338).

47021146 is a wasteful number, since it uses less digits than its factorization.

47021146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 47021146 is about 6857.1966575270. The cubic root of 47021146 is about 360.9367220525.

The spelling of 47021146 in words is "forty-seven million, twenty-one thousand, one hundred forty-six".