84123070 has 16 divisors (see below), whose sum is σ = 159391440. Its totient is φ = 31878144.

The previous prime is 84123059. The next prime is 84123097. The reversal of 84123070 is 7032148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221187 + ... + 221566.

It is an arithmetic number, because the mean of its divisors is an integer number (9961965).

Almost surely, 2^84123070 is an apocalyptic number.

84123070 is a deficient number, since it is larger than the sum of its proper divisors (75268370).

84123070 is a wasteful number, since it uses less digits than its factorization.

84123070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442779.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 84123070 is about 9171.8629514401. The cubic root of 84123070 is about 438.1656935156.

The spelling of 84123070 in words is "eighty-four million, one hundred twenty-three thousand, seventy".