47768137 has 2 divisors, whose sum is σ = 47768138. Its totient is φ = 47768136.

The previous prime is 47768093. The next prime is 47768153. The reversal of 47768137 is 73186774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 33856 = 6909^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 47768137 - 2⁷ = 47768009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47768093 and 47768102.

It is not a weakly prime, because it can be changed into another prime (47768167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23884068 + 23884069.

It is an arithmetic number, because the mean of its divisors is an integer number (23884069).

Almost surely, 2^47768137 is an apocalyptic number.

It is an amenable number.

47768137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47768137 is an equidigital number, since it uses as much as digits as its factorization.

47768137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 43.

The square root of 47768137 is about 6911.4497032099. The cubic root of 47768137 is about 362.8380029333.

The spelling of 47768137 in words is "forty-seven million, seven hundred sixty-eight thousand, one hundred thirty-seven".