20693703 has 4 divisors (see below), whose sum is σ = 27591608. Its totient is φ = 13795800.

The previous prime is 20693681. The next prime is 20693723. The reversal of 20693703 is 30739602.

It is a happy number.

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

It is not a de Polignac number, because 20693703 - 2⁵ = 20693671 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 (20693723) 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, 3448948 + ... + 3448953.

It is an arithmetic number, because the mean of its divisors is an integer number (6897902).

Almost surely, 2^20693703 is an apocalyptic number.

20693703 is a deficient number, since it is larger than the sum of its proper divisors (6897905).

20693703 is an equidigital number, since it uses as much as digits as its factorization.

20693703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897904.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 20693703 is about 4549.0331939875. The cubic root of 20693703 is about 274.5444933037.

The spelling of 20693703 in words is "twenty million, six hundred ninety-three thousand, seven hundred three".