47509039 has 2 divisors, whose sum is σ = 47509040. Its totient is φ = 47509038.

The previous prime is 47509009. The next prime is 47509043. The reversal of 47509039 is 93090574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47509039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47508989 and 47509007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47509009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23754519 + 23754520.

It is an arithmetic number, because the mean of its divisors is an integer number (23754520).

Almost surely, 2^47509039 is an apocalyptic number.

47509039 is a deficient number, since it is larger than the sum of its proper divisors (1).

47509039 is an equidigital number, since it uses as much as digits as its factorization.

47509039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 47509039 is about 6892.6801028337. The cubic root of 47509039 is about 362.1807929576.

The spelling of 47509039 in words is "forty-seven million, five hundred nine thousand, thirty-nine".