20674297 has 8 divisors (see below), whose sum is σ = 23659776. Its totient is φ = 17696832.

The previous prime is 20674273. The next prime is 20674307. The reversal of 20674297 is 79247602.

It is a happy number.

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 20674297 - 2¹⁵ = 20641529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20674207) 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, 5328 + ... + 8350.

It is an arithmetic number, because the mean of its divisors is an integer number (2957472).

Almost surely, 2^20674297 is an apocalyptic number.

It is an amenable number.

20674297 is a deficient number, since it is larger than the sum of its proper divisors (2985479).

20674297 is an equidigital number, since it uses as much as digits as its factorization.

20674297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007.

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

The square root of 20674297 is about 4546.8997129913. The cubic root of 20674297 is about 274.4586463074.

The spelling of 20674297 in words is "twenty million, six hundred seventy-four thousand, two hundred ninety-seven".