7740665 has 8 divisors (see below), whose sum is σ = 9486720. Its totient is φ = 6060592.

The previous prime is 7740653. The next prime is 7740671. The reversal of 7740665 is 5660477.

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 7740665 - 2¹⁴ = 7724281 is a prime.

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, 16235 + ... + 16704.

It is an arithmetic number, because the mean of its divisors is an integer number (1185840).

Almost surely, 2^7740665 is an apocalyptic number.

It is an amenable number.

7740665 is a deficient number, since it is larger than the sum of its proper divisors (1746055).

7740665 is a wasteful number, since it uses less digits than its factorization.

7740665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32991.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 7740665 is about 2782.2050607387. The cubic root of 7740665 is about 197.8150928227.

The spelling of 7740665 in words is "seven million, seven hundred forty thousand, six hundred sixty-five".