7480645 has 4 divisors (see below), whose sum is σ = 8976780. Its totient is φ = 5984512.

The previous prime is 7480639. The next prime is 7480651. The reversal of 7480645 is 5460847.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7480639) and next prime (7480651).

It can be written as a sum of positive squares in 2 ways, for example, as 5885476 + 1595169 = 2426^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 7480645 - 2¹⁵ = 7447877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7480645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748060 + ... + 748069.

It is an arithmetic number, because the mean of its divisors is an integer number (2244195).

Almost surely, 2^7480645 is an apocalyptic number.

It is an amenable number.

7480645 is a deficient number, since it is larger than the sum of its proper divisors (1496135).

7480645 is a wasteful number, since it uses less digits than its factorization.

7480645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496134.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 7480645 is about 2735.0767813720. The cubic root of 7480645 is about 195.5748541967.

The spelling of 7480645 in words is "seven million, four hundred eighty thousand, six hundred forty-five".