97020866 has 8 divisors (see below), whose sum is σ = 147917244. Its totient is φ = 47715120.

The previous prime is 97020851. The next prime is 97020871. The reversal of 97020866 is 66802079.

It can be written as a sum of positive squares in 2 ways, for example, as 95746225 + 1274641 = 9785^2 + 1129^2 .

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

It is a super-3 number, since 3×97020866³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397505 + ... + 397748.

Almost surely, 2^97020866 is an apocalyptic number.

97020866 is a deficient number, since it is larger than the sum of its proper divisors (50896378).

97020866 is a wasteful number, since it uses less digits than its factorization.

97020866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795316.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 97020866 is about 9849.9170554883. The cubic root of 97020866 is about 459.5030329166.

The spelling of 97020866 in words is "ninety-seven million, twenty thousand, eight hundred sixty-six".