78952165 has 8 divisors (see below), whose sum is σ = 100315800. Its totient is φ = 59446272.

The previous prime is 78952157. The next prime is 78952177. The reversal of 78952165 is 56125987.

It can be written as a sum of positive squares in 4 ways, for example, as 14455204 + 64496961 = 3802^2 + 8031^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 78952165 - 2³ = 78952157 is a prime.

It is a congruent number.

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, 464340 + ... + 464509.

It is an arithmetic number, because the mean of its divisors is an integer number (12539475).

Almost surely, 2^78952165 is an apocalyptic number.

It is an amenable number.

78952165 is a deficient number, since it is larger than the sum of its proper divisors (21363635).

78952165 is a wasteful number, since it uses less digits than its factorization.

78952165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928871.

The product of its digits is 151200, while the sum is 43.

The square root of 78952165 is about 8885.5030808615. The cubic root of 78952165 is about 428.9974208490.

The spelling of 78952165 in words is "seventy-eight million, nine hundred fifty-two thousand, one hundred sixty-five".