20199703 has 2 divisors, whose sum is σ = 20199704. Its totient is φ = 20199702.

The previous prime is 20199701. The next prime is 20199709. The reversal of 20199703 is 30799102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20199703 - 2¹ = 20199701 is a prime.

It is a super-3 number, since 3×20199703³ (a number of 23 digits) contains 333 as substring.

Together with 20199701, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20199701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099851 + 10099852.

It is an arithmetic number, because the mean of its divisors is an integer number (10099852).

Almost surely, 2^20199703 is an apocalyptic number.

20199703 is a deficient number, since it is larger than the sum of its proper divisors (1).

20199703 is an equidigital number, since it uses as much as digits as its factorization.

20199703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 20199703 is about 4494.4079699111. The cubic root of 20199703 is about 272.3422333972.

It can be divided in two parts, 20199 and 703, that added together give a palindrome (20902).

The spelling of 20199703 in words is "twenty million, one hundred ninety-nine thousand, seven hundred three".