93664817 has 4 divisors (see below), whose sum is σ = 94056960. Its totient is φ = 93272676.

The previous prime is 93664771. The next prime is 93664841. The reversal of 93664817 is 71846639.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71846639 = 97 ⋅740687.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93664817 is a prime.

It is a super-3 number, since 3×93664817³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93664877) by changing a digit.

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, 195713 + ... + 196190.

It is an arithmetic number, because the mean of its divisors is an integer number (23514240).

Almost surely, 2^93664817 is an apocalyptic number.

It is an amenable number.

93664817 is a deficient number, since it is larger than the sum of its proper divisors (392143).

93664817 is a wasteful number, since it uses less digits than its factorization.

93664817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392142.

The product of its digits is 217728, while the sum is 44.

The square root of 93664817 is about 9678.0585346442. The cubic root of 93664817 is about 454.1425173741.

The spelling of 93664817 in words is "ninety-three million, six hundred sixty-four thousand, eight hundred seventeen".