427278337 has 4 divisors (see below), whose sum is σ = 445855680. Its totient is φ = 408700996.

The previous prime is 427278329. The next prime is 427278347. The reversal of 427278337 is 733872724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427278337 - 2³ = 427278329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427278293 and 427278302.

It is not an unprimeable number, because it can be changed into a prime (427278347) 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, 9288637 + ... + 9288682.

It is an arithmetic number, because the mean of its divisors is an integer number (111463920).

Almost surely, 2^427278337 is an apocalyptic number.

It is an amenable number.

427278337 is a deficient number, since it is larger than the sum of its proper divisors (18577343).

427278337 is a wasteful number, since it uses less digits than its factorization.

427278337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18577342.

The product of its digits is 395136, while the sum is 43.

The square root of 427278337 is about 20670.7120583690. The cubic root of 427278337 is about 753.1884037161.

The spelling of 427278337 in words is "four hundred twenty-seven million, two hundred seventy-eight thousand, three hundred thirty-seven".