427468819 has 4 divisors (see below), whose sum is σ = 428124096. Its totient is φ = 426813544.

The previous prime is 427468793. The next prime is 427468831. The reversal of 427468819 is 918864724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427468819 - 2¹¹ = 427466771 is a prime.

It is a super-3 number, since 3×427468819³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427468879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326659 + ... + 327964.

It is an arithmetic number, because the mean of its divisors is an integer number (107031024).

Almost surely, 2^427468819 is an apocalyptic number.

427468819 is a deficient number, since it is larger than the sum of its proper divisors (655277).

427468819 is an equidigital number, since it uses as much as digits as its factorization.

427468819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655276.

The product of its digits is 774144, while the sum is 49.

The square root of 427468819 is about 20675.3190785535. The cubic root of 427468819 is about 753.3003116589.

The spelling of 427468819 in words is "four hundred twenty-seven million, four hundred sixty-eight thousand, eight hundred nineteen".