7897005 has 24 divisors (see below), whose sum is σ = 13818168. Its totient is φ = 4171776.

The previous prime is 7897003. The next prime is 7897013. The reversal of 7897005 is 5007987.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 7469289 = 654^2 + 2733^2 .

It is not a de Polignac number, because 7897005 - 2¹ = 7897003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7897003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4309 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (575757).

Almost surely, 2^7897005 is an apocalyptic number.

It is an amenable number.

7897005 is a deficient number, since it is larger than the sum of its proper divisors (5921163).

7897005 is a wasteful number, since it uses less digits than its factorization.

7897005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 7897005 is about 2810.1610274146. The cubic root of 7897005 is about 199.1379984374.

The spelling of 7897005 in words is "seven million, eight hundred ninety-seven thousand, five".