427743519 has 16 divisors (see below), whose sum is σ = 658522368. Its totient is φ = 241903872.

The previous prime is 427743479. The next prime is 427743553. The reversal of 427743519 is 915347724.

It is not a de Polignac number, because 427743519 - 2¹² = 427739423 is a prime.

It is a super-2 number, since 2×427743519² = 365929036093006722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427743559) 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, 102957 + ... + 107030.

It is an arithmetic number, because the mean of its divisors is an integer number (41157648).

Almost surely, 2^427743519 is an apocalyptic number.

427743519 is a deficient number, since it is larger than the sum of its proper divisors (230778849).

427743519 is a wasteful number, since it uses less digits than its factorization.

427743519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210094.

The product of its digits is 211680, while the sum is 42.

The square root of 427743519 is about 20681.9611981069. The cubic root of 427743519 is about 753.4616390479.

The spelling of 427743519 in words is "four hundred twenty-seven million, seven hundred forty-three thousand, five hundred nineteen".