427381899 has 16 divisors (see below), whose sum is σ = 662288640. Its totient is φ = 240078240.

The previous prime is 427381897. The next prime is 427381919. The reversal of 427381899 is 998183724.

It is not a de Polignac number, because 427381899 - 2¹ = 427381897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427381897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171232 + ... + 173709.

It is an arithmetic number, because the mean of its divisors is an integer number (41393040).

Almost surely, 2^427381899 is an apocalyptic number.

427381899 is a deficient number, since it is larger than the sum of its proper divisors (234906741).

427381899 is a wasteful number, since it uses less digits than its factorization.

427381899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345010.

The product of its digits is 870912, while the sum is 51.

The square root of 427381899 is about 20673.2169485061. The cubic root of 427381899 is about 753.2492503896.

The spelling of 427381899 in words is "four hundred twenty-seven million, three hundred eighty-one thousand, eight hundred ninety-nine".