97656149 has 2 divisors, whose sum is σ = 97656150. Its totient is φ = 97656148.

The previous prime is 97656127. The next prime is 97656173. The reversal of 97656149 is 94165679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 1909924 = 9785^2 + 1382^2 .

It is a cyclic number.

It is not a de Polignac number, because 97656149 - 2⁸ = 97655893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97656179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48828074 + 48828075.

It is an arithmetic number, because the mean of its divisors is an integer number (48828075).

Almost surely, 2^97656149 is an apocalyptic number.

It is an amenable number.

97656149 is a deficient number, since it is larger than the sum of its proper divisors (1).

97656149 is an equidigital number, since it uses as much as digits as its factorization.

97656149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 97656149 is about 9882.1125777842. The cubic root of 97656149 is about 460.5037785728.

The spelling of 97656149 in words is "ninety-seven million, six hundred fifty-six thousand, one hundred forty-nine".