427373217 has 48 divisors (see below), whose sum is σ = 674947728. Its totient is φ = 259522560.

The previous prime is 427373131. The next prime is 427373237. The reversal of 427373217 is 712373724.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41486481 + 385886736 = 6441^2 + 19644^2 .

It is not a de Polignac number, because 427373217 - 2¹⁰ = 427372193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427373237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1210513 + ... + 1210865.

It is an arithmetic number, because the mean of its divisors is an integer number (14061411).

Almost surely, 2^427373217 is an apocalyptic number.

It is an amenable number.

427373217 is a deficient number, since it is larger than the sum of its proper divisors (247574511).

427373217 is a wasteful number, since it uses less digits than its factorization.

427373217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 607 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 427373217 is about 20673.0069656061. The cubic root of 427373217 is about 753.2441497569.

It can be divided in two parts, 42737 and 3217, that added together give a palindrome (45954).

The spelling of 427373217 in words is "four hundred twenty-seven million, three hundred seventy-three thousand, two hundred seventeen".