7625645 has 8 divisors (see below), whose sum is σ = 9167256. Its totient is φ = 6089536.

The previous prime is 7625621. The next prime is 7625677. The reversal of 7625645 is 5465267.

7625645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 7557001 = 262^2 + 2749^2 .

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 7625645 - 2⁸ = 7625389 is a prime.

It is a super-3 number, since 3×7625645³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2879 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (1145907).

Almost surely, 2^7625645 is an apocalyptic number.

It is an amenable number.

7625645 is a deficient number, since it is larger than the sum of its proper divisors (1541611).

7625645 is a wasteful number, since it uses less digits than its factorization.

7625645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751.

The product of its digits is 50400, while the sum is 35.

The square root of 7625645 is about 2761.4570429395. The cubic root of 7625645 is about 196.8304088143.

The spelling of 7625645 in words is "seven million, six hundred twenty-five thousand, six hundred forty-five".