93434813 has 4 divisors (see below), whose sum is σ = 95197788. Its totient is φ = 91671840.

The previous prime is 93434807. The next prime is 93434821. The reversal of 93434813 is 31843439.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31843439 = 599 ⋅53161.

It can be written as a sum of positive squares in 2 ways, for example, as 59013124 + 34421689 = 7682^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 93434813 - 2⁶ = 93434749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93434863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881408 + ... + 881513.

It is an arithmetic number, because the mean of its divisors is an integer number (23799447).

Almost surely, 2^93434813 is an apocalyptic number.

It is an amenable number.

93434813 is a deficient number, since it is larger than the sum of its proper divisors (1762975).

93434813 is a wasteful number, since it uses less digits than its factorization.

93434813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762974.

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

The square root of 93434813 is about 9666.1684756681. The cubic root of 93434813 is about 453.7704808024.

The spelling of 93434813 in words is "ninety-three million, four hundred thirty-four thousand, eight hundred thirteen".