47966893 has 4 divisors (see below), whose sum is σ = 51656668. Its totient is φ = 44277120.

The previous prime is 47966881. The next prime is 47966903. The reversal of 47966893 is 39866974.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20958084 + 27008809 = 4578^2 + 5197^2 .

It is a cyclic number.

It is not a de Polignac number, because 47966893 - 2⁵ = 47966861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47966893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47966803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844868 + ... + 1844893.

It is an arithmetic number, because the mean of its divisors is an integer number (12914167).

Almost surely, 2^47966893 is an apocalyptic number.

It is an amenable number.

47966893 is a deficient number, since it is larger than the sum of its proper divisors (3689775).

47966893 is a wasteful number, since it uses less digits than its factorization.

47966893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689774.

The product of its digits is 1959552, while the sum is 52.

The square root of 47966893 is about 6925.8135262220. The cubic root of 47966893 is about 363.3405446109.

The spelling of 47966893 in words is "forty-seven million, nine hundred sixty-six thousand, eight hundred ninety-three".