93663971 has 4 divisors (see below), whose sum is σ = 93742152. Its totient is φ = 93585792.

The previous prime is 93663953. The next prime is 93663991. The reversal of 93663971 is 17936639.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93663971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93663991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37265 + ... + 39698.

It is an arithmetic number, because the mean of its divisors is an integer number (23435538).

Almost surely, 2^93663971 is an apocalyptic number.

93663971 is a deficient number, since it is larger than the sum of its proper divisors (78181).

93663971 is a wasteful number, since it uses less digits than its factorization.

93663971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78180.

The product of its digits is 183708, while the sum is 44.

The square root of 93663971 is about 9678.0148274323. The cubic root of 93663971 is about 454.1411500669.

The spelling of 93663971 in words is "ninety-three million, six hundred sixty-three thousand, nine hundred seventy-one".