47947693 has 2 divisors, whose sum is σ = 47947694. Its totient is φ = 47947692.

The previous prime is 47947631. The next prime is 47947717. The reversal of 47947693 is 39674974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45198729 + 2748964 = 6723^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 47947693 - 2¹³ = 47939501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47947093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23973846 + 23973847.

It is an arithmetic number, because the mean of its divisors is an integer number (23973847).

Almost surely, 2^47947693 is an apocalyptic number.

It is an amenable number.

47947693 is a deficient number, since it is larger than the sum of its proper divisors (1).

47947693 is an equidigital number, since it uses as much as digits as its factorization.

47947693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 47947693 is about 6924.4272687349. The cubic root of 47947693 is about 363.2920592979.

The spelling of 47947693 in words is "forty-seven million, nine hundred forty-seven thousand, six hundred ninety-three".