427216683 has 4 divisors (see below), whose sum is σ = 569622248. Its totient is φ = 284811120.

The previous prime is 427216619. The next prime is 427216693. The reversal of 427216683 is 386612724.

It is a happy number.

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

It is not a de Polignac number, because 427216683 - 2⁶ = 427216619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427216693) 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, 71202778 + ... + 71202783.

It is an arithmetic number, because the mean of its divisors is an integer number (142405562).

Almost surely, 2^427216683 is an apocalyptic number.

427216683 is a deficient number, since it is larger than the sum of its proper divisors (142405565).

427216683 is a wasteful number, since it uses less digits than its factorization.

427216683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142405564.

The product of its digits is 96768, while the sum is 39.

The square root of 427216683 is about 20669.2206674562. The cubic root of 427216683 is about 753.1521749416.

The spelling of 427216683 in words is "four hundred twenty-seven million, two hundred sixteen thousand, six hundred eighty-three".