427140877 has 2 divisors, whose sum is σ = 427140878. Its totient is φ = 427140876.

The previous prime is 427140871. The next prime is 427140893. The reversal of 427140877 is 778041724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264680361 + 162460516 = 16269^2 + 12746^2 .

It is a cyclic number.

It is not a de Polignac number, because 427140877 - 2³ = 427140869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427140871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213570438 + 213570439.

It is an arithmetic number, because the mean of its divisors is an integer number (213570439).

Almost surely, 2^427140877 is an apocalyptic number.

It is an amenable number.

427140877 is a deficient number, since it is larger than the sum of its proper divisors (1).

427140877 is an equidigital number, since it uses as much as digits as its factorization.

427140877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 427140877 is about 20667.3867965933. The cubic root of 427140877 is about 753.1076254711.

The spelling of 427140877 in words is "four hundred twenty-seven million, one hundred forty thousand, eight hundred seventy-seven".