83839454 has 4 divisors (see below), whose sum is σ = 125759184. Its totient is φ = 41919726.

The previous prime is 83839429. The next prime is 83839471. The reversal of 83839454 is 45493838.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20959862 + ... + 20959865.

It is an arithmetic number, because the mean of its divisors is an integer number (31439796).

Almost surely, 2^83839454 is an apocalyptic number.

83839454 is a deficient number, since it is larger than the sum of its proper divisors (41919730).

83839454 is a wasteful number, since it uses less digits than its factorization.

83839454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41919729.

The product of its digits is 414720, while the sum is 44.

The square root of 83839454 is about 9156.3886986082. The cubic root of 83839454 is about 437.6727224407.

The spelling of 83839454 in words is "eighty-three million, eight hundred thirty-nine thousand, four hundred fifty-four".