83858420 has 24 divisors (see below), whose sum is σ = 176322048. Its totient is φ = 33501600.

The previous prime is 83858389. The next prime is 83858429. The reversal of 83858420 is 2485838.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83858429) 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, 17705 + ... + 21935.

It is an arithmetic number, because the mean of its divisors is an integer number (7346752).

Almost surely, 2^83858420 is an apocalyptic number.

It is an amenable number.

83858420 is an abundant number, since it is smaller than the sum of its proper divisors (92463628).

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

83858420 is a wasteful number, since it uses less digits than its factorization.

83858420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 83858420 is about 9157.4243103615. The cubic root of 83858420 is about 437.7057231128.

The spelling of 83858420 in words is "eighty-three million, eight hundred fifty-eight thousand, four hundred twenty".