78216795 has 24 divisors (see below), whose sum is σ = 137490912. Its totient is φ = 41126400.

The previous prime is 78216781. The next prime is 78216839. The reversal of 78216795 is 59761287.

It is not a de Polignac number, because 78216795 - 2⁶ = 78216731 is a prime.

It is a super-2 number, since 2×78216795² = 12235734040144050, which contains 22 as substring.

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 78216795.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9046 + ... + 15435.

It is an arithmetic number, because the mean of its divisors is an integer number (5728788).

Almost surely, 2^78216795 is an apocalyptic number.

78216795 is a deficient number, since it is larger than the sum of its proper divisors (59274117).

78216795 is a wasteful number, since it uses less digits than its factorization.

78216795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24563 (or 24560 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 78216795 is about 8844.0259497584. The cubic root of 78216795 is about 427.6613528607.

The spelling of 78216795 in words is "seventy-eight million, two hundred sixteen thousand, seven hundred ninety-five".