427007977 has 16 divisors (see below), whose sum is σ = 483900480. Its totient is φ = 373240000.

The previous prime is 427007969. The next prime is 427008007. The reversal of 427007977 is 779700724.

It is a cyclic number.

It is not a de Polignac number, because 427007977 - 2³ = 427007969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427007927) 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 in 15 ways as a sum of consecutive naturals, for example, 77403 + ... + 82735.

It is an arithmetic number, because the mean of its divisors is an integer number (30243780).

Almost surely, 2^427007977 is an apocalyptic number.

It is an amenable number.

427007977 is a deficient number, since it is larger than the sum of its proper divisors (56892503).

427007977 is a wasteful number, since it uses less digits than its factorization.

427007977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 427007977 is about 20664.1713359138. The cubic root of 427007977 is about 753.0295104268.

The spelling of 427007977 in words is "four hundred twenty-seven million, seven thousand, nine hundred seventy-seven".