97775533 has 2 divisors, whose sum is σ = 97775534. Its totient is φ = 97775532.

The previous prime is 97775527. The next prime is 97775627. The reversal of 97775533 is 33557779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96569929 + 1205604 = 9827^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 97775533 - 2¹⁷ = 97644461 is a prime.

It is a super-3 number, since 3×97775533³ (a number of 25 digits) contains 333 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97775233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48887766 + 48887767.

It is an arithmetic number, because the mean of its divisors is an integer number (48887767).

Almost surely, 2^97775533 is an apocalyptic number.

It is an amenable number.

97775533 is a deficient number, since it is larger than the sum of its proper divisors (1).

97775533 is an equidigital number, since it uses as much as digits as its factorization.

97775533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 694575, while the sum is 46.

The square root of 97775533 is about 9888.1511416442. The cubic root of 97775533 is about 460.6913564364.

The spelling of 97775533 in words is "ninety-seven million, seven hundred seventy-five thousand, five hundred thirty-three".