97420447 has 2 divisors, whose sum is σ = 97420448. Its totient is φ = 97420446.

The previous prime is 97420441. The next prime is 97420481. The reversal of 97420447 is 74402479.

It is a weak prime.

It is an emirp because it is prime and its reverse (74402479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97420447 - 2¹⁹ = 96896159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97420441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48710223 + 48710224.

It is an arithmetic number, because the mean of its divisors is an integer number (48710224).

Almost surely, 2^97420447 is an apocalyptic number.

97420447 is a deficient number, since it is larger than the sum of its proper divisors (1).

97420447 is an equidigital number, since it uses as much as digits as its factorization.

97420447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 97420447 is about 9870.1796842813. The cubic root of 97420447 is about 460.1329908478.

The spelling of 97420447 in words is "ninety-seven million, four hundred twenty thousand, four hundred forty-seven".