97443569 has 2 divisors, whose sum is σ = 97443570. Its totient is φ = 97443568.

The previous prime is 97443503. The next prime is 97443583. The reversal of 97443569 is 96534479.

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., 78996544 + 18447025 = 8888^2 + 4295^2 .

It is an emirp because it is prime and its reverse (96534479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97443569 - 2¹² = 97439473 is a prime.

It is a super-2 number, since 2×97443569² = 18990498278915522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97443589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48721784 + 48721785.

It is an arithmetic number, because the mean of its divisors is an integer number (48721785).

Almost surely, 2^97443569 is an apocalyptic number.

It is an amenable number.

97443569 is a deficient number, since it is larger than the sum of its proper divisors (1).

97443569 is an equidigital number, since it uses as much as digits as its factorization.

97443569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 97443569 is about 9871.3509207200. The cubic root of 97443569 is about 460.1693909867.

The spelling of 97443569 in words is "ninety-seven million, four hundred forty-three thousand, five hundred sixty-nine".