83332780 has 24 divisors (see below), whose sum is σ = 177967440. Its totient is φ = 32767680.

The previous prime is 83332751. The next prime is 83332783. The reversal of 83332780 is 8723338.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (83332783) 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, 34131 + ... + 36490.

It is an arithmetic number, because the mean of its divisors is an integer number (7415310).

Almost surely, 2^83332780 is an apocalyptic number.

It is an amenable number.

83332780 is an abundant number, since it is smaller than the sum of its proper divisors (94634660).

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

83332780 is a wasteful number, since it uses less digits than its factorization.

83332780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70689 (or 70687 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 83332780 is about 9128.6789843876. The cubic root of 83332780 is about 436.7892656036.

The spelling of 83332780 in words is "eighty-three million, three hundred thirty-two thousand, seven hundred eighty".