97651 has 2 divisors, whose sum is σ = 97652. Its totient is φ = 97650.
The previous prime is 97649. The next prime is 97673. The reversal of 97651 is 15679.
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (15679) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 97651 - 21 = 97649 is a prime.
Together with 97649, it forms a pair of twin primes.
It is a nialpdrome in base 10.
It is not a weakly prime, because it can be changed into another prime (97151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48825 + 48826.
It is an arithmetic number, because the mean of its divisors is an integer number (48826).
297651 is an apocalyptic number.
97651 is a deficient number, since it is larger than the sum of its proper divisors (1).
97651 is an equidigital number, since it uses as much as digits as its factorization.
97651 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1890, while the sum is 28.
The square root of 97651 is about 312.4915998871. The cubic root of 97651 is about 46.0495684952.
Adding to 97651 its sum of digits (28), we get a palindrome (97679).
The spelling of 97651 in words is "ninety-seven thousand, six hundred fifty-one".
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