47873021 has 8 divisors (see below), whose sum is σ = 56477184. Its totient is φ = 39710160.

The previous prime is 47873017. The next prime is 47873029. The reversal of 47873021 is 12037874.

It is a happy number.

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

It is not a de Polignac number, because 47873021 - 2² = 47873017 is a prime.

It is a super-2 number, since 2×47873021² = 4583652279332882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47873029) 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, 110090 + ... + 110523.

It is an arithmetic number, because the mean of its divisors is an integer number (7059648).

Almost surely, 2^47873021 is an apocalyptic number.

It is an amenable number.

47873021 is a deficient number, since it is larger than the sum of its proper divisors (8604163).

47873021 is a wasteful number, since it uses less digits than its factorization.

47873021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220651.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47873021 is about 6919.0332417181. The cubic root of 47873021 is about 363.1033686801.

The spelling of 47873021 in words is "forty-seven million, eight hundred seventy-three thousand, twenty-one".