97546409 has 2 divisors, whose sum is σ = 97546410. Its totient is φ = 97546408.

The previous prime is 97546387. The next prime is 97546433. The reversal of 97546409 is 90464579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 46280809 = 7160^2 + 6803^2 .

It is a cyclic number.

It is not a de Polignac number, because 97546409 - 2²⁰ = 96497833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97546409.

It is not a weakly prime, because it can be changed into another prime (97546499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48773204 + 48773205.

It is an arithmetic number, because the mean of its divisors is an integer number (48773205).

Almost surely, 2^97546409 is an apocalyptic number.

It is an amenable number.

97546409 is a deficient number, since it is larger than the sum of its proper divisors (1).

97546409 is an equidigital number, since it uses as much as digits as its factorization.

97546409 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 44.

The square root of 97546409 is about 9876.5585605513. The cubic root of 97546409 is about 460.3312186038.

The spelling of 97546409 in words is "ninety-seven million, five hundred forty-six thousand, four hundred nine".