20733371 has 4 divisors (see below), whose sum is σ = 20744592. Its totient is φ = 20722152.

The previous prime is 20733359. The next prime is 20733467. The reversal of 20733371 is 17333702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20733371 - 2¹⁴ = 20716987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20733371.

It is not an unprimeable number, because it can be changed into a prime (20733571) 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, 2111 + ... + 6776.

It is an arithmetic number, because the mean of its divisors is an integer number (5186148).

Almost surely, 2^20733371 is an apocalyptic number.

20733371 is a deficient number, since it is larger than the sum of its proper divisors (11221).

20733371 is an equidigital number, since it uses as much as digits as its factorization.

20733371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 20733371 is about 4553.3911538545. The cubic root of 20733371 is about 274.7198071752.

The spelling of 20733371 in words is "twenty million, seven hundred thirty-three thousand, three hundred seventy-one".