93140421 has 16 divisors (see below), whose sum is σ = 135902208. Its totient is φ = 56271600.

The previous prime is 93140401. The next prime is 93140459. The reversal of 93140421 is 12404139.

It is not a de Polignac number, because 93140421 - 2⁷ = 93140293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 93140391 and 93140400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93140401) 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, 6660 + ... + 15186.

It is an arithmetic number, because the mean of its divisors is an integer number (8493888).

Almost surely, 2^93140421 is an apocalyptic number.

It is an amenable number.

93140421 is a deficient number, since it is larger than the sum of its proper divisors (42761787).

93140421 is a wasteful number, since it uses less digits than its factorization.

93140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 93140421 is about 9650.9285045533. The cubic root of 93140421 is about 453.2934032857.

The spelling of 93140421 in words is "ninety-three million, one hundred forty thousand, four hundred twenty-one".