97864505 has 8 divisors (see below), whose sum is σ = 118141632. Its totient is φ = 77822128.

The previous prime is 97864493. The next prime is 97864567. The reversal of 97864505 is 50546879.

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 97864505 - 2¹⁰ = 97863481 is a prime.

It is a super-2 number, since 2×97864505² = 19154922677790050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57767 + ... + 59436.

It is an arithmetic number, because the mean of its divisors is an integer number (14767704).

Almost surely, 2^97864505 is an apocalyptic number.

It is an amenable number.

97864505 is a deficient number, since it is larger than the sum of its proper divisors (20277127).

97864505 is a wasteful number, since it uses less digits than its factorization.

97864505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117375.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 97864505 is about 9892.6490385538. The cubic root of 97864505 is about 460.8310512513.

The spelling of 97864505 in words is "ninety-seven million, eight hundred sixty-four thousand, five hundred five".