83429785 has 8 divisors (see below), whose sum is σ = 100401480. Its totient is φ = 66553344.

The previous prime is 83429777. The next prime is 83429803. The reversal of 83429785 is 58792438.

It can be written as a sum of positive squares in 4 ways, for example, as 328329 + 83101456 = 573^2 + 9116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83429785 - 2³ = 83429777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21870 + ... + 25399.

It is an arithmetic number, because the mean of its divisors is an integer number (12550185).

Almost surely, 2^83429785 is an apocalyptic number.

It is an amenable number.

83429785 is a deficient number, since it is larger than the sum of its proper divisors (16971695).

83429785 is a wasteful number, since it uses less digits than its factorization.

83429785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47627.

The product of its digits is 483840, while the sum is 46.

The square root of 83429785 is about 9133.9906393646. The cubic root of 83429785 is about 436.9586839787.

The spelling of 83429785 in words is "eighty-three million, four hundred twenty-nine thousand, seven hundred eighty-five".