47405087 has 2 divisors, whose sum is σ = 47405088. Its totient is φ = 47405086.

The previous prime is 47405069. The next prime is 47405089. The reversal of 47405087 is 78050474.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47405087 - 2¹⁸ = 47142943 is a prime.

Together with 47405089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47405089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23702543 + 23702544.

It is an arithmetic number, because the mean of its divisors is an integer number (23702544).

Almost surely, 2^47405087 is an apocalyptic number.

47405087 is a deficient number, since it is larger than the sum of its proper divisors (1).

47405087 is an equidigital number, since it uses as much as digits as its factorization.

47405087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 47405087 is about 6885.1352201682. The cubic root of 47405087 is about 361.9164438879.

The spelling of 47405087 in words is "forty-seven million, four hundred five thousand, eighty-seven".