47039929 has 2 divisors, whose sum is σ = 47039930. Its totient is φ = 47039928.

The previous prime is 47039921. The next prime is 47039939. The reversal of 47039929 is 92993074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 1166400 = 6773^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 47039929 - 2³ = 47039921 is a prime.

It is not a weakly prime, because it can be changed into another prime (47039921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23519964 + 23519965.

It is an arithmetic number, because the mean of its divisors is an integer number (23519965).

Almost surely, 2^47039929 is an apocalyptic number.

It is an amenable number.

47039929 is a deficient number, since it is larger than the sum of its proper divisors (1).

47039929 is an equidigital number, since it uses as much as digits as its factorization.

47039929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 47039929 is about 6858.5661037858. The cubic root of 47039929 is about 360.9847754109.

The spelling of 47039929 in words is "forty-seven million, thirty-nine thousand, nine hundred twenty-nine".