93646421 has 16 divisors (see below), whose sum is σ = 113866560. Its totient is φ = 75905280.

The previous prime is 93646417. The next prime is 93646429. The reversal of 93646421 is 12464639.

It is not a de Polignac number, because 93646421 - 2² = 93646417 is a prime.

It is a super-2 number, since 2×93646421² = 17539304332218482, 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 (93646429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9626 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (7116660).

Almost surely, 2^93646421 is an apocalyptic number.

It is an amenable number.

93646421 is a deficient number, since it is larger than the sum of its proper divisors (20220139).

93646421 is a wasteful number, since it uses less digits than its factorization.

93646421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26404.

The product of its digits is 31104, while the sum is 35.

The square root of 93646421 is about 9677.1080907469. The cubic root of 93646421 is about 454.1127838590.

The spelling of 93646421 in words is "ninety-three million, six hundred forty-six thousand, four hundred twenty-one".