79165065 has 32 divisors (see below), whose sum is σ = 146108160. Its totient is φ = 35852544.

The previous prime is 79165063. The next prime is 79165067. The reversal of 79165065 is 56056197.

79165065 = 336² + 337² + ... + 650².

It is an interprime number because it is at equal distance from previous prime (79165063) and next prime (79165067).

It is not a de Polignac number, because 79165065 - 2¹ = 79165063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79165063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7987 + ... + 14903.

It is an arithmetic number, because the mean of its divisors is an integer number (4565880).

Almost surely, 2^79165065 is an apocalyptic number.

It is an amenable number.

79165065 is a deficient number, since it is larger than the sum of its proper divisors (66943095).

79165065 is a wasteful number, since it uses less digits than its factorization.

79165065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 79165065 is about 8897.4752036744. The cubic root of 79165065 is about 429.3826818819.

It can be divided in two parts, 791 and 65065, that multiplied together give a palindrome (51466415).

The spelling of 79165065 in words is "seventy-nine million, one hundred sixty-five thousand, sixty-five".