427991496 has 16 divisors (see below), whose sum is σ = 1069978800. Its totient is φ = 142663824.

The previous prime is 427991491. The next prime is 427991503. The reversal of 427991496 is 694199724.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (427991491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8916466 + ... + 8916513.

It is an arithmetic number, because the mean of its divisors is an integer number (66873675).

Almost surely, 2^427991496 is an apocalyptic number.

It is an amenable number.

427991496 is an abundant number, since it is smaller than the sum of its proper divisors (641987304).

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

427991496 is a wasteful number, since it uses less digits than its factorization.

427991496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17832988 (or 17832984 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 427991496 is about 20687.9553363787. The cubic root of 427991496 is about 753.6072130926.

The spelling of 427991496 in words is "four hundred twenty-seven million, nine hundred ninety-one thousand, four hundred ninety-six".