7897605 has 16 divisors (see below), whose sum is σ = 13379904. Its totient is φ = 3964160.

The previous prime is 7897601. The next prime is 7897607. The reversal of 7897605 is 5067987.

It is not a de Polignac number, because 7897605 - 2² = 7897601 is a prime.

It is an Ulam number.

7897605 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7897601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15231 + ... + 15740.

It is an arithmetic number, because the mean of its divisors is an integer number (836244).

Almost surely, 2^7897605 is an apocalyptic number.

It is an amenable number.

7897605 is a deficient number, since it is larger than the sum of its proper divisors (5482299).

7897605 is a wasteful number, since it uses less digits than its factorization.

7897605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30996.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 7897605 is about 2810.2677808351. The cubic root of 7897605 is about 199.1430416900.

The spelling of 7897605 in words is "seven million, eight hundred ninety-seven thousand, six hundred five".