20695733 has 4 divisors (see below), whose sum is σ = 20774688. Its totient is φ = 20616780.

The previous prime is 20695729. The next prime is 20695747. The reversal of 20695733 is 33759602.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33759602 = 2 ⋅16879801.

It is a cyclic number.

It is not a de Polignac number, because 20695733 - 2² = 20695729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20695693 and 20695702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20695033) 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, 39083 + ... + 39608.

It is an arithmetic number, because the mean of its divisors is an integer number (5193672).

Almost surely, 2^20695733 is an apocalyptic number.

It is an amenable number.

20695733 is a deficient number, since it is larger than the sum of its proper divisors (78955).

20695733 is an equidigital number, since it uses as much as digits as its factorization.

20695733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78954.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 20695733 is about 4549.2563128494. The cubic root of 20695733 is about 274.5534703839.

The spelling of 20695733 in words is "twenty million, six hundred ninety-five thousand, seven hundred thirty-three".