47970289 has 2 divisors, whose sum is σ = 47970290. Its totient is φ = 47970288.

The previous prime is 47970257. The next prime is 47970317. The reversal of 47970289 is 98207974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 8381025 = 6292^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 47970289 - 2⁵ = 47970257 is a prime.

It is a super-2 number, since 2×47970289² = 4602297253487042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47970589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23985144 + 23985145.

It is an arithmetic number, because the mean of its divisors is an integer number (23985145).

Almost surely, 2^47970289 is an apocalyptic number.

It is an amenable number.

47970289 is a deficient number, since it is larger than the sum of its proper divisors (1).

47970289 is an equidigital number, since it uses as much as digits as its factorization.

47970289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 47970289 is about 6926.0586916370. The cubic root of 47970289 is about 363.3491191039.

The spelling of 47970289 in words is "forty-seven million, nine hundred seventy thousand, two hundred eighty-nine".