20267693 has 4 divisors (see below), whose sum is σ = 20313888. Its totient is φ = 20221500.

The previous prime is 20267671. The next prime is 20267717. The reversal of 20267693 is 39676202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20267693 - 2⁶ = 20267629 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 (20267603) 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, 22433 + ... + 23318.

It is an arithmetic number, because the mean of its divisors is an integer number (5078472).

Almost surely, 2^20267693 is an apocalyptic number.

It is an amenable number.

20267693 is a deficient number, since it is larger than the sum of its proper divisors (46195).

20267693 is an equidigital number, since it uses as much as digits as its factorization.

20267693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 20267693 is about 4501.9654596631. The cubic root of 20267693 is about 272.6474493091.

The spelling of 20267693 in words is "twenty million, two hundred sixty-seven thousand, six hundred ninety-three".