47991763 has 2 divisors, whose sum is σ = 47991764. Its totient is φ = 47991762.

The previous prime is 47991707. The next prime is 47991767. The reversal of 47991763 is 36719974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47991763 - 2¹⁷ = 47860691 is a prime.

It is not a weakly prime, because it can be changed into another prime (47991767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23995881 + 23995882.

It is an arithmetic number, because the mean of its divisors is an integer number (23995882).

Almost surely, 2^47991763 is an apocalyptic number.

47991763 is a deficient number, since it is larger than the sum of its proper divisors (1).

47991763 is an equidigital number, since it uses as much as digits as its factorization.

47991763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 46.

The square root of 47991763 is about 6927.6087504997. The cubic root of 47991763 is about 363.4033290129.

The spelling of 47991763 in words is "forty-seven million, nine hundred ninety-one thousand, seven hundred sixty-three".