47805829 has 2 divisors, whose sum is σ = 47805830. Its totient is φ = 47805828.

The previous prime is 47805803. The next prime is 47805839. The reversal of 47805829 is 92850874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33350625 + 14455204 = 5775^2 + 3802^2 .

It is a cyclic number.

It is not a de Polignac number, because 47805829 - 2⁷ = 47805701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47805839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23902914 + 23902915.

It is an arithmetic number, because the mean of its divisors is an integer number (23902915).

Almost surely, 2^47805829 is an apocalyptic number.

It is an amenable number.

47805829 is a deficient number, since it is larger than the sum of its proper divisors (1).

47805829 is an equidigital number, since it uses as much as digits as its factorization.

47805829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 47805829 is about 6914.1759451145. The cubic root of 47805829 is about 362.9334116817.

It can be divided in two parts, 4780 and 5829, that added together give a square (10609 = 103²).

The spelling of 47805829 in words is "forty-seven million, eight hundred five thousand, eight hundred twenty-nine".