47440787 has 2 divisors, whose sum is σ = 47440788. Its totient is φ = 47440786.

The previous prime is 47440769. The next prime is 47440793. The reversal of 47440787 is 78704474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47440787 - 2²⁴ = 30663571 is a prime.

It is not a weakly prime, because it can be changed into another prime (47440717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23720393 + 23720394.

It is an arithmetic number, because the mean of its divisors is an integer number (23720394).

Almost surely, 2^47440787 is an apocalyptic number.

47440787 is a deficient number, since it is larger than the sum of its proper divisors (1).

47440787 is an equidigital number, since it uses as much as digits as its factorization.

47440787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 47440787 is about 6887.7272739272. The cubic root of 47440787 is about 362.0072722204.

The spelling of 47440787 in words is "forty-seven million, four hundred forty thousand, seven hundred eighty-seven".