7398643 has 4 divisors (see below), whose sum is σ = 8455600. Its totient is φ = 6341688.

The previous prime is 7398613. The next prime is 7398647. The reversal of 7398643 is 3468937.

7398643 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: 3468937 = 103 ⋅33679.

It is a cyclic number.

It is not a de Polignac number, because 7398643 - 2¹³ = 7390451 is a prime.

It is a super-3 number, since 3×7398643³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7398596 and 7398605.

It is not an unprimeable number, because it can be changed into a prime (7398647) 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 3 ways as a sum of consecutive naturals, for example, 528468 + ... + 528481.

It is an arithmetic number, because the mean of its divisors is an integer number (2113900).

Almost surely, 2^7398643 is an apocalyptic number.

7398643 is a deficient number, since it is larger than the sum of its proper divisors (1056957).

7398643 is a wasteful number, since it uses less digits than its factorization.

7398643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056956.

The product of its digits is 108864, while the sum is 40.

The square root of 7398643 is about 2720.0446687509. The cubic root of 7398643 is about 194.8576036907.

The spelling of 7398643 in words is "seven million, three hundred ninety-eight thousand, six hundred forty-three".