19708070 has 16 divisors (see below), whose sum is σ = 35594208. Its totient is φ = 7856640.

The previous prime is 19708069. The next prime is 19708093. The reversal of 19708070 is 7080791.

19708070 = T₁₈₉ + T₁₉₀ + ... + T₄₉₉.

It is a Curzon number.

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, 59 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (2224638).

Almost surely, 2^19708070 is an apocalyptic number.

19708070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19708070 is a deficient number, since it is larger than the sum of its proper divisors (15886138).

19708070 is a wasteful number, since it uses less digits than its factorization.

19708070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 19708070 is about 4439.3772085733. The cubic root of 19708070 is about 270.1145832818.

The spelling of 19708070 in words is "nineteen million, seven hundred eight thousand, seventy".