20675827 has 8 divisors (see below), whose sum is σ = 21620736. Its totient is φ = 19734792.

The previous prime is 20675813. The next prime is 20675917. The reversal of 20675827 is 72857602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20675827 - 2¹⁹ = 20151539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20675227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18478 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (2702592).

Almost surely, 2^20675827 is an apocalyptic number.

20675827 is a deficient number, since it is larger than the sum of its proper divisors (944909).

20675827 is a wasteful number, since it uses less digits than its factorization.

20675827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 20675827 is about 4547.0679563868. The cubic root of 20675827 is about 274.4654165718.

It can be divided in two parts, 20675 and 827, that multiplied together give a square (17098225 = 4135²).

The spelling of 20675827 in words is "twenty million, six hundred seventy-five thousand, eight hundred twenty-seven".