7204745 has 4 divisors (see below), whose sum is σ = 8645700. Its totient is φ = 5763792.

The previous prime is 7204739. The next prime is 7204759. The reversal of 7204745 is 5474027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5474027 = 13 ⋅421079.

It can be written as a sum of positive squares in 2 ways, for example, as 3108169 + 4096576 = 1763^2 + 2024^2 .

It is a cyclic number.

It is not a de Polignac number, because 7204745 - 2¹⁴ = 7188361 is a prime.

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, 720470 + ... + 720479.

It is an arithmetic number, because the mean of its divisors is an integer number (2161425).

Almost surely, 2^7204745 is an apocalyptic number.

It is an amenable number.

7204745 is a deficient number, since it is larger than the sum of its proper divisors (1440955).

7204745 is a wasteful number, since it uses less digits than its factorization.

7204745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440954.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 7204745 is about 2684.1656059193. The cubic root of 7204745 is about 193.1402865610.

The spelling of 7204745 in words is "seven million, two hundred four thousand, seven hundred forty-five".