20347063 has 4 divisors (see below), whose sum is σ = 22196808. Its totient is φ = 18497320.

The previous prime is 20347037. The next prime is 20347069. The reversal of 20347063 is 36074302.

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

It is a cyclic number.

It is not a de Polignac number, because 20347063 - 2⁵ = 20347031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20347069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924856 + ... + 924877.

It is an arithmetic number, because the mean of its divisors is an integer number (5549202).

Almost surely, 2^20347063 is an apocalyptic number.

20347063 is a deficient number, since it is larger than the sum of its proper divisors (1849745).

20347063 is a wasteful number, since it uses less digits than its factorization.

20347063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849744.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20347063 is about 4510.7718851656. The cubic root of 20347063 is about 273.0028892251.

The spelling of 20347063 in words is "twenty million, three hundred forty-seven thousand, sixty-three".