97966969 has 2 divisors, whose sum is σ = 97966970. Its totient is φ = 97966968.

The previous prime is 97966961. The next prime is 97966987. The reversal of 97966969 is 96966979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59675625 + 38291344 = 7725^2 + 6188^2 .

It is a cyclic number.

It is not a de Polignac number, because 97966969 - 2³ = 97966961 is a prime.

It is a super-2 number, since 2×97966969² = 19195054030093922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97966961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48983484 + 48983485.

It is an arithmetic number, because the mean of its divisors is an integer number (48983485).

Almost surely, 2^97966969 is an apocalyptic number.

It is an amenable number.

97966969 is a deficient number, since it is larger than the sum of its proper divisors (1).

97966969 is an equidigital number, since it uses as much as digits as its factorization.

97966969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9920232, while the sum is 61.

The square root of 97966969 is about 9897.8264785760. The cubic root of 97966969 is about 460.9918249766.

The spelling of 97966969 in words is "ninety-seven million, nine hundred sixty-six thousand, nine hundred sixty-nine".