83091330 has 48 divisors (see below), whose sum is σ = 246901824. Its totient is φ = 18992160.

The previous prime is 83091329. The next prime is 83091469. The reversal of 83091330 is 3319038.

It is a junction number, because it is equal to n+sod(n) for n = 83091294 and 83091303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65316 + ... + 66575.

It is an arithmetic number, because the mean of its divisors is an integer number (5143788).

Almost surely, 2^83091330 is an apocalyptic number.

83091330 is an abundant number, since it is smaller than the sum of its proper divisors (163810494).

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

83091330 is a wasteful number, since it uses less digits than its factorization.

83091330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131911 (or 131908 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 83091330 is about 9115.4445859760. Note that the first 3 decimals coincide. The cubic root of 83091330 is about 436.3670036435.

The spelling of 83091330 in words is "eighty-three million, ninety-one thousand, three hundred thirty".