20064693 has 16 divisors (see below), whose sum is σ = 29975616. Its totient is φ = 11831040.

The previous prime is 20064677. The next prime is 20064697. The reversal of 20064693 is 39646002.

It is not a de Polignac number, because 20064693 - 2⁴ = 20064677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20064693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6996 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (1873476).

Almost surely, 2^20064693 is an apocalyptic number.

It is an amenable number.

20064693 is a deficient number, since it is larger than the sum of its proper divisors (9910923).

20064693 is a wasteful number, since it uses less digits than its factorization.

20064693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16484.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20064693 is about 4479.3630127508. The cubic root of 20064693 is about 271.7341196919.

The spelling of 20064693 in words is "twenty million, sixty-four thousand, six hundred ninety-three".