7740345 has 8 divisors (see below), whose sum is σ = 12384576. Its totient is φ = 4128176.

The previous prime is 7740323. The next prime is 7740371. The reversal of 7740345 is 5430477.

7740345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7740345 - 2⁶ = 7740281 is a prime.

It is a Curzon 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, 257997 + ... + 258026.

It is an arithmetic number, because the mean of its divisors is an integer number (1548072).

Almost surely, 2^7740345 is an apocalyptic number.

It is an amenable number.

7740345 is a deficient number, since it is larger than the sum of its proper divisors (4644231).

7740345 is a wasteful number, since it uses less digits than its factorization.

7740345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516031.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 7740345 is about 2782.1475518024. The cubic root of 7740345 is about 197.8123668855.

The spelling of 7740345 in words is "seven million, seven hundred forty thousand, three hundred forty-five".