427807992 has 32 divisors (see below), whose sum is σ = 1132434000. Its totient is φ = 134214144.

The previous prime is 427807957. The next prime is 427807993. The reversal of 427807992 is 299708724.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427807993) 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 7 ways as a sum of consecutive naturals, for example, 523867 + ... + 524682.

Almost surely, 2^427807992 is an apocalyptic number.

It is an amenable number.

427807992 is an abundant number, since it is smaller than the sum of its proper divisors (704626008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427807992 is a wasteful number, since it uses less digits than its factorization.

427807992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048575 (or 1048571 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 427807992 is about 20683.5198165109. The cubic root of 427807992 is about 753.4994931120.

The spelling of 427807992 in words is "four hundred twenty-seven million, eight hundred seven thousand, nine hundred ninety-two".