426710993 has 4 divisors (see below), whose sum is σ = 427527408. Its totient is φ = 425894580.

The previous prime is 426710981. The next prime is 426711011. The reversal of 426710993 is 399017624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426710993 - 2⁶ = 426710929 is a prime.

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 426710993.

It is not an unprimeable number, because it can be changed into a prime (426710953) 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, 407423 + ... + 408468.

It is an arithmetic number, because the mean of its divisors is an integer number (106881852).

Almost surely, 2^426710993 is an apocalyptic number.

It is an amenable number.

426710993 is a deficient number, since it is larger than the sum of its proper divisors (816415).

426710993 is an equidigital number, since it uses as much as digits as its factorization.

426710993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816414.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 426710993 is about 20656.9841215992. The cubic root of 426710993 is about 752.8548926250.

The spelling of 426710993 in words is "four hundred twenty-six million, seven hundred ten thousand, nine hundred ninety-three".