83398854 has 64 divisors (see below), whose sum is σ = 210212352. Its totient is φ = 21427200.

The previous prime is 83398807. The next prime is 83398891. The reversal of 83398854 is 45889338.

It is a super-3 number, since 3×83398854³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43884 + ... + 45744.

It is an arithmetic number, because the mean of its divisors is an integer number (3284568).

Almost surely, 2^83398854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83398854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105106176).

83398854 is an abundant number, since it is smaller than the sum of its proper divisors (126813498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83398854 is a wasteful number, since it uses less digits than its factorization.

83398854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its digits is 829440, while the sum is 48.

The square root of 83398854 is about 9132.2973013366. The cubic root of 83398854 is about 436.9046775282.

The spelling of 83398854 in words is "eighty-three million, three hundred ninety-eight thousand, eight hundred fifty-four".