47920097 has 2 divisors, whose sum is σ = 47920098. Its totient is φ = 47920096.

The previous prime is 47920073. The next prime is 47920099. The reversal of 47920097 is 79002974.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30813601 + 17106496 = 5551^2 + 4136^2 .

It is a cyclic number.

It is not a de Polignac number, because 47920097 - 2²⁰ = 46871521 is a prime.

Together with 47920099, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47920097.

It is not a weakly prime, because it can be changed into another prime (47920099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23960048 + 23960049.

It is an arithmetic number, because the mean of its divisors is an integer number (23960049).

Almost surely, 2^47920097 is an apocalyptic number.

It is an amenable number.

47920097 is a deficient number, since it is larger than the sum of its proper divisors (1).

47920097 is an equidigital number, since it uses as much as digits as its factorization.

47920097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 47920097 is about 6922.4343261601. The cubic root of 47920097 is about 363.2223490852. Note that the first 3 decimals are identical.

The spelling of 47920097 in words is "forty-seven million, nine hundred twenty thousand, ninety-seven".