7643125 has 20 divisors (see below), whose sum is σ = 10921504. Its totient is φ = 5238000.

The previous prime is 7643123. The next prime is 7643131. The reversal of 7643125 is 5213467.

It is not a de Polignac number, because 7643125 - 2¹ = 7643123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7643093 and 7643102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7643123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3502 + ... + 5248.

Almost surely, 2^7643125 is an apocalyptic number.

It is an amenable number.

7643125 is a deficient number, since it is larger than the sum of its proper divisors (3278379).

7643125 is an equidigital number, since it uses as much as digits as its factorization.

7643125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1759 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 7643125 is about 2764.6202270836. The cubic root of 7643125 is about 196.9806898712.

The spelling of 7643125 in words is "seven million, six hundred forty-three thousand, one hundred twenty-five".