20348773 has 4 divisors (see below), whose sum is σ = 20550348. Its totient is φ = 20147200.

The previous prime is 20348759. The next prime is 20348819. The reversal of 20348773 is 37784302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11716929 + 8631844 = 3423^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 20348773 - 2²¹ = 18251621 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 (20348743) 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, 100636 + ... + 100837.

It is an arithmetic number, because the mean of its divisors is an integer number (5137587).

Almost surely, 2^20348773 is an apocalyptic number.

It is an amenable number.

20348773 is a deficient number, since it is larger than the sum of its proper divisors (201575).

20348773 is a wasteful number, since it uses less digits than its factorization.

20348773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201574.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 20348773 is about 4510.9614274565. The cubic root of 20348773 is about 273.0105368786.

The spelling of 20348773 in words is "twenty million, three hundred forty-eight thousand, seven hundred seventy-three".