227020805 has 24 divisors (see below), whose sum is σ = 317070936. Its totient is φ = 155386880.

The previous prime is 227020793. The next prime is 227020823. The reversal of 227020805 is 508020722.

It can be written as a sum of positive squares in 4 ways, for example, as 111049444 + 115971361 = 10538^2 + 10769^2 .

It is not a de Polignac number, because 227020805 - 2¹⁰ = 227019781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (13211289).

Almost surely, 2^227020805 is an apocalyptic number.

It is an amenable number.

227020805 is a deficient number, since it is larger than the sum of its proper divisors (90050131).

227020805 is a wasteful number, since it uses less digits than its factorization.

227020805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22117 (or 22106 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 227020805 is about 15067.2095956750. The cubic root of 227020805 is about 610.0356558930.

The spelling of 227020805 in words is "two hundred twenty-seven million, twenty thousand, eight hundred five".