20679241 has 4 divisors (see below), whose sum is σ = 22559184. Its totient is φ = 18799300.

The previous prime is 20679229. The next prime is 20679251. The reversal of 20679241 is 14297602.

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 20679241 - 2¹⁷ = 20548169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20679251) 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, 939955 + ... + 939976.

It is an arithmetic number, because the mean of its divisors is an integer number (5639796).

Almost surely, 2^20679241 is an apocalyptic number.

It is an amenable number.

20679241 is a deficient number, since it is larger than the sum of its proper divisors (1879943).

20679241 is a wasteful number, since it uses less digits than its factorization.

20679241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879942.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20679241 is about 4547.4433476405. The cubic root of 20679241 is about 274.4805223499.

The spelling of 20679241 in words is "twenty million, six hundred seventy-nine thousand, two hundred forty-one".