97502689 has 2 divisors, whose sum is σ = 97502690. Its totient is φ = 97502688.

The previous prime is 97502687. The next prime is 97502711. The reversal of 97502689 is 98620579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95707089 + 1795600 = 9783^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 97502689 - 2¹ = 97502687 is a prime.

Together with 97502687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97502683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48751344 + 48751345.

It is an arithmetic number, because the mean of its divisors is an integer number (48751345).

Almost surely, 2^97502689 is an apocalyptic number.

It is an amenable number.

97502689 is a deficient number, since it is larger than the sum of its proper divisors (1).

97502689 is an equidigital number, since it uses as much as digits as its factorization.

97502689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 97502689 is about 9874.3449909348. The cubic root of 97502689 is about 460.2624353153.

The spelling of 97502689 in words is "ninety-seven million, five hundred two thousand, six hundred eighty-nine".