47428071 has 16 divisors (see below), whose sum is σ = 64758528. Its totient is φ = 30867200.

The previous prime is 47428067. The next prime is 47428081. The reversal of 47428071 is 17082474.

It is a cyclic number.

It is not a de Polignac number, because 47428071 - 2² = 47428067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47428061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21751 + ... + 23831.

It is an arithmetic number, because the mean of its divisors is an integer number (4047408).

Almost surely, 2^47428071 is an apocalyptic number.

47428071 is a deficient number, since it is larger than the sum of its proper divisors (17330457).

47428071 is a wasteful number, since it uses less digits than its factorization.

47428071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 47428071 is about 6886.8041209258. The cubic root of 47428071 is about 361.9749252597.

The spelling of 47428071 in words is "forty-seven million, four hundred twenty-eight thousand, seventy-one".