20802267 has 6 divisors (see below), whose sum is σ = 30047732. Its totient is φ = 13868172.

The previous prime is 20802233. The next prime is 20802269. The reversal of 20802267 is 76220802.

It is not a de Polignac number, because 20802267 - 2⁷ = 20802139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20802267.

It is not an unprimeable number, because it can be changed into a prime (20802269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1155673 + ... + 1155690.

Almost surely, 2^20802267 is an apocalyptic number.

20802267 is a deficient number, since it is larger than the sum of its proper divisors (9245465).

20802267 is a wasteful number, since it uses less digits than its factorization.

20802267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311369 (or 2311366 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20802267 is about 4560.9502299411. The cubic root of 20802267 is about 275.0237643375.

The spelling of 20802267 in words is "twenty million, eight hundred two thousand, two hundred sixty-seven".