93404021 has 8 divisors (see below), whose sum is σ = 97556640. Its totient is φ = 89337168.

The previous prime is 93403949. The next prime is 93404039. The reversal of 93404021 is 12040439.

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 93404021 - 2¹⁸ = 93141877 is a prime.

It is a super-2 number, since 2×93404021² = 17448622277936882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93404071) 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, 19211 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (12194580).

Almost surely, 2^93404021 is an apocalyptic number.

It is an amenable number.

93404021 is a deficient number, since it is larger than the sum of its proper divisors (4152619).

93404021 is a wasteful number, since it uses less digits than its factorization.

93404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42883.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 93404021 is about 9664.5755726778. The cubic root of 93404021 is about 453.7206277359.

The spelling of 93404021 in words is "ninety-three million, four hundred four thousand, twenty-one".