47621767 has 2 divisors, whose sum is σ = 47621768. Its totient is φ = 47621766.

The previous prime is 47621747. The next prime is 47621779. The reversal of 47621767 is 76712674.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47621767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47621737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23810883 + 23810884.

It is an arithmetic number, because the mean of its divisors is an integer number (23810884).

Almost surely, 2^47621767 is an apocalyptic number.

47621767 is a deficient number, since it is larger than the sum of its proper divisors (1).

47621767 is an equidigital number, since it uses as much as digits as its factorization.

47621767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 40.

The square root of 47621767 is about 6900.8526284800. The cubic root of 47621767 is about 362.4670238731.

The spelling of 47621767 in words is "forty-seven million, six hundred twenty-one thousand, seven hundred sixty-seven".