47651911 has 2 divisors, whose sum is σ = 47651912. Its totient is φ = 47651910.

The previous prime is 47651899. The next prime is 47651951. The reversal of 47651911 is 11915674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47651911 - 2¹¹ = 47649863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47651951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23825955 + 23825956.

It is an arithmetic number, because the mean of its divisors is an integer number (23825956).

Almost surely, 2^47651911 is an apocalyptic number.

47651911 is a deficient number, since it is larger than the sum of its proper divisors (1).

47651911 is an equidigital number, since it uses as much as digits as its factorization.

47651911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 34.

The square root of 47651911 is about 6903.0363609067. The cubic root of 47651911 is about 362.5434868162.

The spelling of 47651911 in words is "forty-seven million, six hundred fifty-one thousand, nine hundred eleven".