20674927 has 16 divisors (see below), whose sum is σ = 25833472. Its totient is φ = 16109280.

The previous prime is 20674921. The next prime is 20674931. The reversal of 20674927 is 72947602.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20674927 - 2³ = 20674919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674921) 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 15 ways as a sum of consecutive naturals, for example, 4402 + ... + 7792.

It is an arithmetic number, because the mean of its divisors is an integer number (1614592).

Almost surely, 2^20674927 is an apocalyptic number.

20674927 is a deficient number, since it is larger than the sum of its proper divisors (5158545).

20674927 is a wasteful number, since it uses less digits than its factorization.

20674927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 20674927 is about 4546.9689904375. The cubic root of 20674927 is about 274.4614341038.

The spelling of 20674927 in words is "twenty million, six hundred seventy-four thousand, nine hundred twenty-seven".