20061700 has 36 divisors (see below), whose sum is σ = 46098612. Its totient is φ = 7552000.

The previous prime is 20061673. The next prime is 20061737. The reversal of 20061700 is 716002.

It can be written as a sum of positive squares in 6 ways, for example, as 9216 + 20052484 = 96^2 + 4478^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4201 + ... + 7600.

It is an arithmetic number, because the mean of its divisors is an integer number (1280517).

Almost surely, 2^20061700 is an apocalyptic number.

20061700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20061700 is an abundant number, since it is smaller than the sum of its proper divisors (26036912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20061700 is a wasteful number, since it uses less digits than its factorization.

20061700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832 (or 11825 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 20061700 is about 4479.0289126104. The cubic root of 20061700 is about 271.7206077206.

Adding to 20061700 its reverse (716002), we get a palindrome (20777702).

The spelling of 20061700 in words is "twenty million, sixty-one thousand, seven hundred".