47901247 has 2 divisors, whose sum is σ = 47901248. Its totient is φ = 47901246.

The previous prime is 47901239. The next prime is 47901251. The reversal of 47901247 is 74210974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47901247 - 2³ = 47901239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47901647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23950623 + 23950624.

It is an arithmetic number, because the mean of its divisors is an integer number (23950624).

Almost surely, 2^47901247 is an apocalyptic number.

47901247 is a deficient number, since it is larger than the sum of its proper divisors (1).

47901247 is an equidigital number, since it uses as much as digits as its factorization.

47901247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47901247 is about 6921.0726769772. The cubic root of 47901247 is about 363.1747167440.

The spelling of 47901247 in words is "forty-seven million, nine hundred one thousand, two hundred forty-seven".