426860393 has 4 divisors (see below), whose sum is σ = 427794900. Its totient is φ = 425925888.

The previous prime is 426860377. The next prime is 426860509. The reversal of 426860393 is 393068624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273174784 + 153685609 = 16528^2 + 12397^2 .

It is a cyclic number.

It is not a de Polignac number, because 426860393 - 2⁴ = 426860377 is a prime.

It is a super-3 number, since 3×426860393³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426860393.

It is not an unprimeable number, because it can be changed into a prime (426862393) 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 3 ways as a sum of consecutive naturals, for example, 466568 + ... + 467481.

It is an arithmetic number, because the mean of its divisors is an integer number (106948725).

Almost surely, 2^426860393 is an apocalyptic number.

It is an amenable number.

426860393 is a deficient number, since it is larger than the sum of its proper divisors (934507).

426860393 is an equidigital number, since it uses as much as digits as its factorization.

426860393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934506.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 426860393 is about 20660.6000154884. The cubic root of 426860393 is about 752.9427455267.

The spelling of 426860393 in words is "four hundred twenty-six million, eight hundred sixty thousand, three hundred ninety-three".