47608139 has 2 divisors, whose sum is σ = 47608140. Its totient is φ = 47608138.

The previous prime is 47608097. The next prime is 47608189. The reversal of 47608139 is 93180674.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47608139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (47608189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23804069 + 23804070.

It is an arithmetic number, because the mean of its divisors is an integer number (23804070).

Almost surely, 2^47608139 is an apocalyptic number.

47608139 is a deficient number, since it is larger than the sum of its proper divisors (1).

47608139 is an equidigital number, since it uses as much as digits as its factorization.

47608139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 47608139 is about 6899.8651436097. The cubic root of 47608139 is about 362.4324446446.

The spelling of 47608139 in words is "forty-seven million, six hundred eight thousand, one hundred thirty-nine".