78853365 has 16 divisors (see below), whose sum is σ = 140184000. Its totient is φ = 42055056.

The previous prime is 78853351. The next prime is 78853399. The reversal of 78853365 is 56335887.

It is not a de Polignac number, because 78853365 - 2⁸ = 78853109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 78853365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291915 + ... + 292184.

It is an arithmetic number, because the mean of its divisors is an integer number (8761500).

Almost surely, 2^78853365 is an apocalyptic number.

It is an amenable number.

78853365 is a deficient number, since it is larger than the sum of its proper divisors (61330635).

78853365 is a wasteful number, since it uses less digits than its factorization.

78853365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584113 (or 584107 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 78853365 is about 8879.9417227817. The cubic root of 78853365 is about 428.8183983674.

The spelling of 78853365 in words is "seventy-eight million, eight hundred fifty-three thousand, three hundred sixty-five".