7243645 has 8 divisors (see below), whose sum is σ = 8759520. Its totient is φ = 5750160.

The previous prime is 7243631. The next prime is 7243667. The reversal of 7243645 is 5463427.

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

It is not a de Polignac number, because 7243645 - 2⁷ = 7243517 is a prime.

It is a d-powerful number, because it can be written as 7³ + 2²¹ + 4⁵ + 3¹⁴ + 6⁷ + 4⁶ + 5⁷ .

7243645 is a lucky 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, 4875 + ... + 6184.

It is an arithmetic number, because the mean of its divisors is an integer number (1094940).

Almost surely, 2^7243645 is an apocalyptic number.

It is an amenable number.

7243645 is a deficient number, since it is larger than the sum of its proper divisors (1515875).

7243645 is a wasteful number, since it uses less digits than its factorization.

7243645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11195.

The product of its digits is 20160, while the sum is 31.

The square root of 7243645 is about 2691.4020509764. The cubic root of 7243645 is about 193.4872651070.

The spelling of 7243645 in words is "seven million, two hundred forty-three thousand, six hundred forty-five".