83821054 has 8 divisors (see below), whose sum is σ = 127323360. Its totient is φ = 41379936.

The previous prime is 83821043. The next prime is 83821063. The reversal of 83821054 is 45012838.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265099 + ... + 265414.

It is an arithmetic number, because the mean of its divisors is an integer number (15915420).

Almost surely, 2^83821054 is an apocalyptic number.

83821054 is a deficient number, since it is larger than the sum of its proper divisors (43502306).

83821054 is a wasteful number, since it uses less digits than its factorization.

83821054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530594.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 83821054 is about 9155.3838805372. The cubic root of 83821054 is about 437.6407018469.

The spelling of 83821054 in words is "eighty-three million, eight hundred twenty-one thousand, fifty-four".