427331031 has 16 divisors (see below), whose sum is σ = 573470688. Its totient is φ = 283046400.

The previous prime is 427331029. The next prime is 427331077. The reversal of 427331031 is 130133724.

It is not a de Polignac number, because 427331031 - 2¹ = 427331029 is a prime.

It is a super-2 number, since 2×427331031² = 365223620111045922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427330992 and 427331010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427331081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455595 + ... + 456531.

It is an arithmetic number, because the mean of its divisors is an integer number (35841918).

Almost surely, 2^427331031 is an apocalyptic number.

427331031 is a deficient number, since it is larger than the sum of its proper divisors (146139657).

427331031 is a wasteful number, since it uses less digits than its factorization.

427331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 427331031 is about 20671.9866244152. The cubic root of 427331031 is about 753.2193647040.

Adding to 427331031 its reverse (130133724), we get a palindrome (557464755).

The spelling of 427331031 in words is "four hundred twenty-seven million, three hundred thirty-one thousand, thirty-one".