47903477 has 2 divisors, whose sum is σ = 47903478. Its totient is φ = 47903476.

The previous prime is 47903461. The next prime is 47903497. The reversal of 47903477 is 77430974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46158436 + 1745041 = 6794^2 + 1321^2 .

It is a cyclic number.

It is not a de Polignac number, because 47903477 - 2⁴ = 47903461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47903407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23951738 + 23951739.

It is an arithmetic number, because the mean of its divisors is an integer number (23951739).

Almost surely, 2^47903477 is an apocalyptic number.

It is an amenable number.

47903477 is a deficient number, since it is larger than the sum of its proper divisors (1).

47903477 is an equidigital number, since it uses as much as digits as its factorization.

47903477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 47903477 is about 6921.2337772972. The cubic root of 47903477 is about 363.1803524153.

The spelling of 47903477 in words is "forty-seven million, nine hundred three thousand, four hundred seventy-seven".