426870531 has 12 divisors (see below), whose sum is σ = 625276080. Its totient is φ = 280571760.

The previous prime is 426870463. The next prime is 426870551. The reversal of 426870531 is 135078624.

426870531 is a `hidden beast` number, since 42 + 6 + 87 + 0 + 531 = 666.

It is not a de Polignac number, because 426870531 - 2¹¹ = 426868483 is a prime.

It is a super-3 number, since 3×426870531³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (426870551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333376 + ... + 334653.

It is an arithmetic number, because the mean of its divisors is an integer number (52106340).

Almost surely, 2^426870531 is an apocalyptic number.

426870531 is a deficient number, since it is larger than the sum of its proper divisors (198405549).

426870531 is a wasteful number, since it uses less digits than its factorization.

426870531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668106 (or 668103 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 426870531 is about 20660.8453602460. The cubic root of 426870531 is about 752.9487063148.

The spelling of 426870531 in words is "four hundred twenty-six million, eight hundred seventy thousand, five hundred thirty-one".