7740065 has 8 divisors (see below), whose sum is σ = 9419328. Its totient is φ = 6104560.

The previous prime is 7740037. The next prime is 7740077. The reversal of 7740065 is 5600477.

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

It is not a de Polignac number, because 7740065 - 2⁶ = 7740001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10547 + ... + 11256.

It is an arithmetic number, because the mean of its divisors is an integer number (1177416).

Almost surely, 2^7740065 is an apocalyptic number.

It is an amenable number.

7740065 is a deficient number, since it is larger than the sum of its proper divisors (1679263).

7740065 is a wasteful number, since it uses less digits than its factorization.

7740065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21879.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 7740065 is about 2782.0972305079. The cubic root of 7740065 is about 197.8099816287.

The spelling of 7740065 in words is "seven million, seven hundred forty thousand, sixty-five".