7650645 has 16 divisors (see below), whose sum is σ = 12636672. Its totient is φ = 3948480.

The previous prime is 7650631. The next prime is 7650647. The reversal of 7650645 is 5460567.

It is not a de Polignac number, because 7650645 - 2⁸ = 7650389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7762 + ... + 8691.

It is an arithmetic number, because the mean of its divisors is an integer number (789792).

Almost surely, 2^7650645 is an apocalyptic number.

It is an amenable number.

7650645 is a deficient number, since it is larger than the sum of its proper divisors (4986027).

7650645 is a wasteful number, since it uses less digits than its factorization.

7650645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16492.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 7650645 is about 2765.9799348513. The cubic root of 7650645 is about 197.0452711885.

It can be divided in two parts, 76 and 50645, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 7650645 in words is "seven million, six hundred fifty thousand, six hundred forty-five".