93830021 has 8 divisors (see below), whose sum is σ = 99615744. Its totient is φ = 88073920.

The previous prime is 93830003. The next prime is 93830047. The reversal of 93830021 is 12003839.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93830021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93830081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (12451968).

Almost surely, 2^93830021 is an apocalyptic number.

It is an amenable number.

93830021 is a deficient number, since it is larger than the sum of its proper divisors (5785723).

93830021 is a wasteful number, since it uses less digits than its factorization.

93830021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14811.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 93830021 is about 9686.5897507843. The cubic root of 93830021 is about 454.4093628349.

The spelling of 93830021 in words is "ninety-three million, eight hundred thirty thousand, twenty-one".