47328929 has 2 divisors, whose sum is σ = 47328930. Its totient is φ = 47328928.

The previous prime is 47328923. The next prime is 47328949. The reversal of 47328929 is 92982374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47128225 + 200704 = 6865^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 47328929 - 2¹² = 47324833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47328929.

It is not a weakly prime, because it can be changed into another prime (47328923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23664464 + 23664465.

It is an arithmetic number, because the mean of its divisors is an integer number (23664465).

Almost surely, 2^47328929 is an apocalyptic number.

It is an amenable number.

47328929 is a deficient number, since it is larger than the sum of its proper divisors (1).

47328929 is an equidigital number, since it uses as much as digits as its factorization.

47328929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 47328929 is about 6879.6023867663. The cubic root of 47328929 is about 361.7225293547.

The spelling of 47328929 in words is "forty-seven million, three hundred twenty-eight thousand, nine hundred twenty-nine".