47953639 has 2 divisors, whose sum is σ = 47953640. Its totient is φ = 47953638.

The previous prime is 47953637. The next prime is 47953657. The reversal of 47953639 is 93635974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47953639 - 2¹ = 47953637 is a prime.

Together with 47953637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47953637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23976819 + 23976820.

It is an arithmetic number, because the mean of its divisors is an integer number (23976820).

Almost surely, 2^47953639 is an apocalyptic number.

47953639 is a deficient number, since it is larger than the sum of its proper divisors (1).

47953639 is an equidigital number, since it uses as much as digits as its factorization.

47953639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 46.

The square root of 47953639 is about 6924.8566050136. The cubic root of 47953639 is about 363.3070759766.

The spelling of 47953639 in words is "forty-seven million, nine hundred fifty-three thousand, six hundred thirty-nine".