427000831 has 16 divisors (see below), whose sum is σ = 446236128. Its totient is φ = 408240000.

The previous prime is 427000811. The next prime is 427000853. The reversal of 427000831 is 138000724.

It is a cyclic number.

It is not a de Polignac number, because 427000831 - 2¹³ = 426992639 is a prime.

It is a super-2 number, since 2×427000831² = 364659419349381122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427000796 and 427000805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427000801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608781 + ... + 609481.

It is an arithmetic number, because the mean of its divisors is an integer number (27889758).

Almost surely, 2^427000831 is an apocalyptic number.

427000831 is a deficient number, since it is larger than the sum of its proper divisors (19235297).

427000831 is a wasteful number, since it uses less digits than its factorization.

427000831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 427000831 is about 20663.9984272164. The cubic root of 427000831 is about 753.0253097411.

The spelling of 427000831 in words is "four hundred twenty-seven million, eight hundred thirty-one", and thus it is an aban number.