7897755 has 16 divisors (see below), whose sum is σ = 12695040. Its totient is φ = 4192608.

The previous prime is 7897751. The next prime is 7897783. The reversal of 7897755 is 5577987.

7897755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7897755 - 2² = 7897751 is a prime.

Its product of digits (617400) is a multiple of the sum of its prime divisors (2450).

7897755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7897751) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 4686.

It is an arithmetic number, because the mean of its divisors is an integer number (793440).

Almost surely, 2^7897755 is an apocalyptic number.

7897755 is a deficient number, since it is larger than the sum of its proper divisors (4797285).

7897755 is a wasteful number, since it uses less digits than its factorization.

7897755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450.

The product of its digits is 617400, while the sum is 48.

The square root of 7897755 is about 2810.2944685566. The cubic root of 7897755 is about 199.1443024633.

The spelling of 7897755 in words is "seven million, eight hundred ninety-seven thousand, seven hundred fifty-five".