83809070 has 16 divisors (see below), whose sum is σ = 154934208. Its totient is φ = 32617440.

The previous prime is 83809069. The next prime is 83809111. The reversal of 83809070 is 7090838.

It is a self number, because there is not a number n which added to its sum of digits gives 83809070.

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 7 ways as a sum of consecutive naturals, for example, 112886 + ... + 113625.

It is an arithmetic number, because the mean of its divisors is an integer number (9683388).

Almost surely, 2^83809070 is an apocalyptic number.

83809070 is a deficient number, since it is larger than the sum of its proper divisors (71125138).

83809070 is a wasteful number, since it uses less digits than its factorization.

83809070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226555.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 83809070 is about 9154.7293788511. The cubic root of 83809070 is about 437.6198441749.

The spelling of 83809070 in words is "eighty-three million, eight hundred nine thousand, seventy".