427347219 has 32 divisors (see below), whose sum is σ = 637116480. Its totient is φ = 252983808.

The previous prime is 427347211. The next prime is 427347227. The reversal of 427347219 is 912743724.

It is an interprime number because it is at equal distance from previous prime (427347211) and next prime (427347227).

It is not a de Polignac number, because 427347219 - 2³ = 427347211 is a prime.

It is a super-2 number, since 2×427347219² = 365251291174067922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (427347211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421357 + ... + 422369.

It is an arithmetic number, because the mean of its divisors is an integer number (19909890).

Almost surely, 2^427347219 is an apocalyptic number.

427347219 is a deficient number, since it is larger than the sum of its proper divisors (209769261).

427347219 is a wasteful number, since it uses less digits than its factorization.

427347219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 84672, while the sum is 39.

The square root of 427347219 is about 20672.3781650782. The cubic root of 427347219 is about 753.2288756454.

The spelling of 427347219 in words is "four hundred twenty-seven million, three hundred forty-seven thousand, two hundred nineteen".