7475645 has 8 divisors (see below), whose sum is σ = 9443040. Its totient is φ = 5665680.

The previous prime is 7475641. The next prime is 7475647. The reversal of 7475645 is 5465747.

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

It is not a de Polignac number, because 7475645 - 2² = 7475641 is a prime.

It is a super-3 number, since 3×7475645³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7475599 and 7475608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7475641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39251 + ... + 39440.

It is an arithmetic number, because the mean of its divisors is an integer number (1180380).

Almost surely, 2^7475645 is an apocalyptic number.

It is an amenable number.

7475645 is a deficient number, since it is larger than the sum of its proper divisors (1967395).

7475645 is a wasteful number, since it uses less digits than its factorization.

7475645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78715.

The product of its digits is 117600, while the sum is 38.

The square root of 7475645 is about 2734.1625774632. The cubic root of 7475645 is about 195.5312709576.

The spelling of 7475645 in words is "seven million, four hundred seventy-five thousand, six hundred forty-five".