47291028 has 24 divisors (see below), whose sum is σ = 111441120. Its totient is φ = 15607200.

The previous prime is 47291021. The next prime is 47291029. The reversal of 47291028 is 82019274.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 47291028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47291021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18298 + ... + 20721.

It is an arithmetic number, because the mean of its divisors is an integer number (4643380).

Almost surely, 2^47291028 is an apocalyptic number.

It is an amenable number.

47291028 is an abundant number, since it is smaller than the sum of its proper divisors (64150092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47291028 is a wasteful number, since it uses less digits than its factorization.

47291028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39127 (or 39125 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 47291028 is about 6876.8472427414. The cubic root of 47291028 is about 361.6259477849.

The spelling of 47291028 in words is "forty-seven million, two hundred ninety-one thousand, twenty-eight".