97533971 has 2 divisors, whose sum is σ = 97533972. Its totient is φ = 97533970.

The previous prime is 97533941. The next prime is 97533991. The reversal of 97533971 is 17933579.

It is a strong prime.

It is an emirp because it is prime and its reverse (17933579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97533971 - 2¹⁸ = 97271827 is a prime.

It is not a weakly prime, because it can be changed into another prime (97533911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48766985 + 48766986.

It is an arithmetic number, because the mean of its divisors is an integer number (48766986).

Almost surely, 2^97533971 is an apocalyptic number.

97533971 is a deficient number, since it is larger than the sum of its proper divisors (1).

97533971 is an equidigital number, since it uses as much as digits as its factorization.

97533971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 178605, while the sum is 44.

The square root of 97533971 is about 9875.9288677066. The cubic root of 97533971 is about 460.3116523853.

The spelling of 97533971 in words is "ninety-seven million, five hundred thirty-three thousand, nine hundred seventy-one".