83780582 has 16 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 39777672.

The previous prime is 83780581. The next prime is 83780621. The reversal of 83780582 is 28508738.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83780581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158 + ... + 12945.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520).

Almost surely, 2^83780582 is an apocalyptic number.

83780582 is a deficient number, since it is larger than the sum of its proper divisors (48307738).

83780582 is a wasteful number, since it uses less digits than its factorization.

83780582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13267.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 83780582 is about 9153.1733295071. The cubic root of 83780582 is about 437.5702539697.

The spelling of 83780582 in words is "eighty-three million, seven hundred eighty thousand, five hundred eighty-two".