22870261 has 2 divisors, whose sum is σ = 22870262. Its totient is φ = 22870260.

The previous prime is 22870259. The next prime is 22870273. The reversal of 22870261 is 16207822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17892900 + 4977361 = 4230^2 + 2231^2 .

It is a cyclic number.

It is not a de Polignac number, because 22870261 - 2¹ = 22870259 is a prime.

Together with 22870259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22870201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11435130 + 11435131.

It is an arithmetic number, because the mean of its divisors is an integer number (11435131).

Almost surely, 2^22870261 is an apocalyptic number.

It is an amenable number.

22870261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22870261 is an equidigital number, since it uses as much as digits as its factorization.

22870261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 22870261 is about 4782.2861687691. The cubic root of 22870261 is about 283.8509640900.

The spelling of 22870261 in words is "twenty-two million, eight hundred seventy thousand, two hundred sixty-one".