97759969 has 2 divisors, whose sum is σ = 97759970. Its totient is φ = 97759968.

The previous prime is 97759897. The next prime is 97759999. The reversal of 97759969 is 96995779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79441569 + 18318400 = 8913^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 97759969 - 2¹¹ = 97757921 is a prime.

It is a super-2 number, since 2×97759969² = 19114023077761922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97759999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48879984 + 48879985.

It is an arithmetic number, because the mean of its divisors is an integer number (48879985).

Almost surely, 2^97759969 is an apocalyptic number.

It is an amenable number.

97759969 is a deficient number, since it is larger than the sum of its proper divisors (1).

97759969 is an equidigital number, since it uses as much as digits as its factorization.

97759969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9644670, while the sum is 61.

The square root of 97759969 is about 9887.3641077893. The cubic root of 97759969 is about 460.6669107135. Note that the first 3 decimals are identical.

The spelling of 97759969 in words is "ninety-seven million, seven hundred fifty-nine thousand, nine hundred sixty-nine".