427945977 has 8 divisors (see below), whose sum is σ = 633994080. Its totient is φ = 285297300.

The previous prime is 427945967. The next prime is 427946003. The reversal of 427945977 is 779549724.

427945977 is a `hidden beast` number, since 42 + 7 + 9 + 4 + 597 + 7 = 666.

It is not a de Polignac number, because 427945977 - 2⁴ = 427945961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427945937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7924899 + ... + 7924952.

It is an arithmetic number, because the mean of its divisors is an integer number (79249260).

Almost surely, 2^427945977 is an apocalyptic number.

It is an amenable number.

427945977 is a deficient number, since it is larger than the sum of its proper divisors (206048103).

427945977 is a wasteful number, since it uses less digits than its factorization.

427945977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15849860 (or 15849854 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 427945977 is about 20686.8551742405. The cubic root of 427945977 is about 753.5804955346.

The spelling of 427945977 in words is "four hundred twenty-seven million, nine hundred forty-five thousand, nine hundred seventy-seven".