47428893 has 12 divisors (see below), whose sum is σ = 69188028. Its totient is φ = 31305600.

The previous prime is 47428879. The next prime is 47428897. The reversal of 47428893 is 39882474.

It can be written as a sum of positive squares in 2 ways, for example, as 19740249 + 27688644 = 4443^2 + 5262^2 .

It is not a de Polignac number, because 47428893 - 2²² = 43234589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47428897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25180 + ... + 26997.

It is an arithmetic number, because the mean of its divisors is an integer number (5765669).

Almost surely, 2^47428893 is an apocalyptic number.

It is an amenable number.

47428893 is a deficient number, since it is larger than the sum of its proper divisors (21759135).

47428893 is a wasteful number, since it uses less digits than its factorization.

47428893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52284 (or 52281 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 47428893 is about 6886.8638000181. The cubic root of 47428893 is about 361.9770164381.

The spelling of 47428893 in words is "forty-seven million, four hundred twenty-eight thousand, eight hundred ninety-three".