97482821 has 2 divisors, whose sum is σ = 97482822. Its totient is φ = 97482820.

The previous prime is 97482797. The next prime is 97482823. The reversal of 97482821 is 12828479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 44702596 = 7265^2 + 6686^2 .

It is a cyclic number.

It is not a de Polignac number, because 97482821 - 2¹⁸ = 97220677 is a prime.

It is a Sophie Germain prime.

Together with 97482823, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97482823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48741410 + 48741411.

It is an arithmetic number, because the mean of its divisors is an integer number (48741411).

Almost surely, 2^97482821 is an apocalyptic number.

It is an amenable number.

97482821 is a deficient number, since it is larger than the sum of its proper divisors (1).

97482821 is an equidigital number, since it uses as much as digits as its factorization.

97482821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 97482821 is about 9873.3388982654. The cubic root of 97482821 is about 460.2311708263.

The spelling of 97482821 in words is "ninety-seven million, four hundred eighty-two thousand, eight hundred twenty-one".