7826390223 has 4 divisors (see below), whose sum is σ = 10435186968. Its totient is φ = 5217593480.

The previous prime is 7826390197. The next prime is 7826390233. The reversal of 7826390223 is 3220936287.

7826390223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220936287 = 3 ⋅1073645429.

It is a cyclic number.

It is not a de Polignac number, because 7826390223 - 2⁵ = 7826390191 is a prime.

It is a super-2 number, since 2×7826390223² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7826390233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304398368 + ... + 1304398373.

It is an arithmetic number, because the mean of its divisors is an integer number (2608796742).

Almost surely, 2^7826390223 is an apocalyptic number.

7826390223 is a deficient number, since it is larger than the sum of its proper divisors (2608796745).

7826390223 is a wasteful number, since it uses less digits than its factorization.

7826390223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608796744.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 7826390223 is about 88466.8877207738. The cubic root of 7826390223 is about 1985.4265842912.

The spelling of 7826390223 in words is "seven billion, eight hundred twenty-six million, three hundred ninety thousand, two hundred twenty-three".