427622771 has 2 divisors, whose sum is σ = 427622772. Its totient is φ = 427622770.

The previous prime is 427622753. The next prime is 427622809. The reversal of 427622771 is 177226724.

It is an a-pointer prime, because the next prime (427622809) can be obtained adding 427622771 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427622771 - 2⁶ = 427622707 is a prime.

It is a super-2 number, since 2×427622771² = 365722468555436882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (427622071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213811385 + 213811386.

It is an arithmetic number, because the mean of its divisors is an integer number (213811386).

Almost surely, 2^427622771 is an apocalyptic number.

427622771 is a deficient number, since it is larger than the sum of its proper divisors (1).

427622771 is an equidigital number, since it uses as much as digits as its factorization.

427622771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 38.

The square root of 427622771 is about 20679.0418298334. The cubic root of 427622771 is about 753.3907339813.

The spelling of 427622771 in words is "four hundred twenty-seven million, six hundred twenty-two thousand, seven hundred seventy-one".