83500380 has 36 divisors (see below), whose sum is σ = 253285032. Its totient is φ = 22266720.

The previous prime is 83500369. The next prime is 83500381. The reversal of 83500380 is 8300538.

83500380 is a `hidden beast` number, since 83 + 500 + 3 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83500381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231766 + ... + 232125.

Almost surely, 2^83500380 is an apocalyptic number.

It is an amenable number.

83500380 is an abundant number, since it is smaller than the sum of its proper divisors (169784652).

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

83500380 is a wasteful number, since it uses less digits than its factorization.

83500380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463906 (or 463901 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 83500380 is about 9137.8542338998. The cubic root of 83500380 is about 437.0818949792.

The spelling of 83500380 in words is "eighty-three million, five hundred thousand, three hundred eighty".