427677277 has 2 divisors, whose sum is σ = 427677278. Its totient is φ = 427677276.

The previous prime is 427677247. The next prime is 427677317. The reversal of 427677277 is 772776724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308845476 + 118831801 = 17574^2 + 10901^2 .

It is a cyclic number.

It is not a de Polignac number, because 427677277 - 2²⁷ = 293459549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427677277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427677247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213838638 + 213838639.

It is an arithmetic number, because the mean of its divisors is an integer number (213838639).

Almost surely, 2^427677277 is an apocalyptic number.

It is an amenable number.

427677277 is a deficient number, since it is larger than the sum of its proper divisors (1).

427677277 is an equidigital number, since it uses as much as digits as its factorization.

427677277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1613472, while the sum is 49.

The square root of 427677277 is about 20680.3596922297. The cubic root of 427677277 is about 753.4227423880.

The spelling of 427677277 in words is "four hundred twenty-seven million, six hundred seventy-seven thousand, two hundred seventy-seven".