97827913 has 2 divisors, whose sum is σ = 97827914. Its totient is φ = 97827912.

The previous prime is 97827883. The next prime is 97827923. The reversal of 97827913 is 31972879.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 38105929 = 7728^2 + 6173^2 .

It is an emirp because it is prime and its reverse (31972879) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97827913 is a prime.

It is not a weakly prime, because it can be changed into another prime (97827923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48913956 + 48913957.

It is an arithmetic number, because the mean of its divisors is an integer number (48913957).

Almost surely, 2^97827913 is an apocalyptic number.

It is an amenable number.

97827913 is a deficient number, since it is larger than the sum of its proper divisors (1).

97827913 is an equidigital number, since it uses as much as digits as its factorization.

97827913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 46.

The square root of 97827913 is about 9890.7994115744. The cubic root of 97827913 is about 460.7736084568.

The spelling of 97827913 in words is "ninety-seven million, eight hundred twenty-seven thousand, nine hundred thirteen".