20064706 has 4 divisors (see below), whose sum is σ = 30097062. Its totient is φ = 10032352.

The previous prime is 20064701. The next prime is 20064721. The reversal of 20064706 is 60746002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19722481 + 342225 = 4441^2 + 585^2 .

It is not an unprimeable number, because it can be changed into a prime (20064701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016175 + ... + 5016178.

Almost surely, 2^20064706 is an apocalyptic number.

20064706 is a deficient number, since it is larger than the sum of its proper divisors (10032356).

20064706 is a wasteful number, since it uses less digits than its factorization.

20064706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032355.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20064706 is about 4479.3644638498. The cubic root of 20064706 is about 271.7341783777.

The spelling of 20064706 in words is "twenty million, sixty-four thousand, seven hundred six".