7165705 has 8 divisors (see below), whose sum is σ = 8656704. Its totient is φ = 5694000.

The previous prime is 7165699. The next prime is 7165729. The reversal of 7165705 is 5075617.

7165705 = 842² + 843² + ... + 851².

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

It is not a de Polignac number, because 7165705 - 2⁷ = 7165577 is a prime.

It is a super-3 number, since 3×7165705³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

7165705 is a lucky number.

It is a zygodrome in base 3.

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, 3991 + ... + 5500.

It is an arithmetic number, because the mean of its divisors is an integer number (1082088).

Almost surely, 2^7165705 is an apocalyptic number.

It is an amenable number.

7165705 is a deficient number, since it is larger than the sum of its proper divisors (1490999).

7165705 is a wasteful number, since it uses less digits than its factorization.

7165705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9647.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 7165705 is about 2676.8834490878. The cubic root of 7165705 is about 192.7908012720.

The spelling of 7165705 in words is "seven million, one hundred sixty-five thousand, seven hundred five".