83654980 has 12 divisors (see below), whose sum is σ = 175675500. Its totient is φ = 33461984.

The previous prime is 83654939. The next prime is 83654981. The reversal of 83654980 is 8945638.

It can be written as a sum of positive squares in 2 ways, for example, as 38738176 + 44916804 = 6224^2 + 6702^2 .

It is not an unprimeable number, because it can be changed into a prime (83654981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091355 + ... + 2091394.

It is an arithmetic number, because the mean of its divisors is an integer number (14639625).

Almost surely, 2^83654980 is an apocalyptic number.

It is an amenable number.

83654980 is an abundant number, since it is smaller than the sum of its proper divisors (92020520).

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

83654980 is a wasteful number, since it uses less digits than its factorization.

83654980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182758 (or 4182756 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 83654980 is about 9146.3096383186. The cubic root of 83654980 is about 437.3514793825.

The spelling of 83654980 in words is "eighty-three million, six hundred fifty-four thousand, nine hundred eighty".