97857793 has 8 divisors (see below), whose sum is σ = 110198016. Its totient is φ = 86091600.

The previous prime is 97857779. The next prime is 97857811. The reversal of 97857793 is 39775879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97857793 - 2¹⁷ = 97726721 is a prime.

It is a super-2 number, since 2×97857793² = 19152295301661698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97857743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143146 + ... + 143827.

It is an arithmetic number, because the mean of its divisors is an integer number (13774752).

Almost surely, 2^97857793 is an apocalyptic number.

It is an amenable number.

97857793 is a deficient number, since it is larger than the sum of its proper divisors (12340223).

97857793 is a wasteful number, since it uses less digits than its factorization.

97857793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287015.

The product of its digits is 3333960, while the sum is 55.

The square root of 97857793 is about 9892.3097909437. The cubic root of 97857793 is about 460.8205157027.

It can be divided in two parts, 9785 and 7793, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 97857793 in words is "ninety-seven million, eight hundred fifty-seven thousand, seven hundred ninety-three".