42227077 has 2 divisors, whose sum is σ = 42227078. Its totient is φ = 42227076.

The previous prime is 42227041. The next prime is 42227093. The reversal of 42227077 is 77072224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23512801 + 18714276 = 4849^2 + 4326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42227077 is a prime.

It is equal to p_2560585 and since 42227077 and 2560585 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42227477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21113538 + 21113539.

It is an arithmetic number, because the mean of its divisors is an integer number (21113539).

Almost surely, 2^42227077 is an apocalyptic number.

It is an amenable number.

42227077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42227077 is an equidigital number, since it uses as much as digits as its factorization.

42227077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 42227077 is about 6498.2364530694. The cubic root of 42227077 is about 348.2279878524.

The spelling of 42227077 in words is "forty-two million, two hundred twenty-seven thousand, seventy-seven".