47969783 has 2 divisors, whose sum is σ = 47969784. Its totient is φ = 47969782.

The previous prime is 47969777. The next prime is 47969809. The reversal of 47969783 is 38796974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47969783 - 2⁸ = 47969527 is a prime.

It is a super-2 number, since 2×47969783² = 4602200162134178, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47969083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23984891 + 23984892.

It is an arithmetic number, because the mean of its divisors is an integer number (23984892).

Almost surely, 2^47969783 is an apocalyptic number.

47969783 is a deficient number, since it is larger than the sum of its proper divisors (1).

47969783 is an equidigital number, since it uses as much as digits as its factorization.

47969783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 47969783 is about 6926.0221628291. The cubic root of 47969783 is about 363.3478415402.

The spelling of 47969783 in words is "forty-seven million, nine hundred sixty-nine thousand, seven hundred eighty-three".