7628745 has 8 divisors (see below), whose sum is σ = 12206016. Its totient is φ = 4068656.

The previous prime is 7628741. The next prime is 7628773. The reversal of 7628745 is 5478267.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7628745 - 2² = 7628741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7628741) 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 7 ways as a sum of consecutive naturals, for example, 254277 + ... + 254306.

It is an arithmetic number, because the mean of its divisors is an integer number (1525752).

Almost surely, 2^7628745 is an apocalyptic number.

It is an amenable number.

7628745 is a deficient number, since it is larger than the sum of its proper divisors (4577271).

7628745 is a wasteful number, since it uses less digits than its factorization.

7628745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508591.

The product of its digits is 94080, while the sum is 39.

The square root of 7628745 is about 2762.0182837918. The cubic root of 7628745 is about 196.8570772296.

The spelling of 7628745 in words is "seven million, six hundred twenty-eight thousand, seven hundred forty-five".