83854813 has 8 divisors (see below), whose sum is σ = 95973120. Its totient is φ = 71771280.

The previous prime is 83854811. The next prime is 83854831. The reversal of 83854813 is 31845838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83854813 - 2¹ = 83854811 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 (83854811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (11996640).

Almost surely, 2^83854813 is an apocalyptic number.

It is an amenable number.

83854813 is a deficient number, since it is larger than the sum of its proper divisors (12118307).

83854813 is a wasteful number, since it uses less digits than its factorization.

83854813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17387.

The product of its digits is 92160, while the sum is 40.

The square root of 83854813 is about 9157.2273642189. The cubic root of 83854813 is about 437.6994473479.

The spelling of 83854813 in words is "eighty-three million, eight hundred fifty-four thousand, eight hundred thirteen".