808212941 has 4 divisors (see below), whose sum is σ = 830056572. Its totient is φ = 786369312.

The previous prime is 808212917. The next prime is 808212947. The reversal of 808212941 is 149212808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 724417225 + 83795716 = 26915^2 + 9154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808212941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808212947) 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, 10921760 + ... + 10921833.

It is an arithmetic number, because the mean of its divisors is an integer number (207514143).

Almost surely, 2^808212941 is an apocalyptic number.

It is an amenable number.

808212941 is a deficient number, since it is larger than the sum of its proper divisors (21843631).

808212941 is a wasteful number, since it uses less digits than its factorization.

808212941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21843630.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 808212941 is about 28429.0861794747. The cubic root of 808212941 is about 931.4837151878.

The spelling of 808212941 in words is "eight hundred eight million, two hundred twelve thousand, nine hundred forty-one".