7643123 has 2 divisors, whose sum is σ = 7643124. Its totient is φ = 7643122.

The previous prime is 7643063. The next prime is 7643131. The reversal of 7643123 is 3213467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7643123 - 2⁶ = 7643059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7643092 and 7643101.

It is not a weakly prime, because it can be changed into another prime (7643023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821561 + 3821562.

It is an arithmetic number, because the mean of its divisors is an integer number (3821562).

Almost surely, 2^7643123 is an apocalyptic number.

7643123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7643123 is an equidigital number, since it uses as much as digits as its factorization.

7643123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 7643123 is about 2764.6198653703. The cubic root of 7643123 is about 196.9806726897.

The spelling of 7643123 in words is "seven million, six hundred forty-three thousand, one hundred twenty-three".