94340813 has 4 divisors (see below), whose sum is σ = 107818080. Its totient is φ = 80863548.

The previous prime is 94340809. The next prime is 94340849. The reversal of 94340813 is 31804349.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31804349 = 37 ⋅859577.

It is a cyclic number.

It is not a de Polignac number, because 94340813 - 2² = 94340809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 94340813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94340863) 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, 6738623 + ... + 6738636.

It is an arithmetic number, because the mean of its divisors is an integer number (26954520).

Almost surely, 2^94340813 is an apocalyptic number.

It is an amenable number.

94340813 is a deficient number, since it is larger than the sum of its proper divisors (13477267).

94340813 is a wasteful number, since it uses less digits than its factorization.

94340813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13477266.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 94340813 is about 9712.9199008331. The cubic root of 94340813 is about 455.2324425184.

Subtracting from 94340813 its reverse (31804349), we obtain a square (62536464 = 7908²).

The spelling of 94340813 in words is "ninety-four million, three hundred forty thousand, eight hundred thirteen".