47477389 has 2 divisors, whose sum is σ = 47477390. Its totient is φ = 47477388.

The previous prime is 47477383. The next prime is 47477429. The reversal of 47477389 is 98377474.

47477389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41499364 + 5978025 = 6442^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 47477389 - 2⁵ = 47477357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47477383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23738694 + 23738695.

It is an arithmetic number, because the mean of its divisors is an integer number (23738695).

Almost surely, 2^47477389 is an apocalyptic number.

It is an amenable number.

47477389 is a deficient number, since it is larger than the sum of its proper divisors (1).

47477389 is an equidigital number, since it uses as much as digits as its factorization.

47477389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 49.

The square root of 47477389 is about 6890.3838064363. The cubic root of 47477389 is about 362.1003481356.

The spelling of 47477389 in words is "forty-seven million, four hundred seventy-seven thousand, three hundred eighty-nine".