93100421 has 2 divisors, whose sum is σ = 93100422. Its totient is φ = 93100420.

The previous prime is 93100417. The next prime is 93100429. The reversal of 93100421 is 12400139.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 32649796 = 7775^2 + 5714^2 .

It is a cyclic number.

It is not a de Polignac number, because 93100421 - 2² = 93100417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 93100393 and 93100402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93100429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46550210 + 46550211.

It is an arithmetic number, because the mean of its divisors is an integer number (46550211).

Almost surely, 2^93100421 is an apocalyptic number.

It is an amenable number.

93100421 is a deficient number, since it is larger than the sum of its proper divisors (1).

93100421 is an equidigital number, since it uses as much as digits as its factorization.

93100421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 93100421 is about 9648.8559425457. The cubic root of 93100421 is about 453.2285036708.

The spelling of 93100421 in words is "ninety-three million, one hundred thousand, four hundred twenty-one".