83505070 has 32 divisors (see below), whose sum is σ = 164488320. Its totient is φ = 30270240.

The previous prime is 83505067. The next prime is 83505089. The reversal of 83505070 is 7050538.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40689 + ... + 42691.

It is an arithmetic number, because the mean of its divisors is an integer number (5140260).

Almost surely, 2^83505070 is an apocalyptic number.

83505070 is a deficient number, since it is larger than the sum of its proper divisors (80983250).

83505070 is a wasteful number, since it uses less digits than its factorization.

83505070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 83505070 is about 9138.1108550947. The cubic root of 83505070 is about 437.0900780785.

The spelling of 83505070 in words is "eighty-three million, five hundred five thousand, seventy".