47578894 has 24 divisors (see below), whose sum is σ = 78800904. Its totient is φ = 21529200.

The previous prime is 47578891. The next prime is 47578897. The reversal of 47578894 is 49887574.

It is an interprime number because it is at equal distance from previous prime (47578891) and next prime (47578897).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47578891) 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 11 ways as a sum of consecutive naturals, for example, 101649 + ... + 102115.

It is an arithmetic number, because the mean of its divisors is an integer number (3283371).

Almost surely, 2^47578894 is an apocalyptic number.

47578894 is a deficient number, since it is larger than the sum of its proper divisors (31222010).

47578894 is a wasteful number, since it uses less digits than its factorization.

47578894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 901 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 47578894 is about 6897.7455737364. The cubic root of 47578894 is about 362.3582170850.

The spelling of 47578894 in words is "forty-seven million, five hundred seventy-eight thousand, eight hundred ninety-four".