78965876 has 12 divisors (see below), whose sum is σ = 150753120. Its totient is φ = 35893560.

The previous prime is 78965851. The next prime is 78965879. The reversal of 78965876 is 67856987.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78965879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897296 + ... + 897383.

It is an arithmetic number, because the mean of its divisors is an integer number (12562760).

Almost surely, 2^78965876 is an apocalyptic number.

It is an amenable number.

78965876 is a deficient number, since it is larger than the sum of its proper divisors (71787244).

78965876 is a wasteful number, since it uses less digits than its factorization.

78965876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794694 (or 1794692 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 78965876 is about 8886.2745849990. The cubic root of 78965876 is about 429.0222529449.

Subtracting from 78965876 its reverse (67856987), we obtain a square (11108889 = 3333²).

The spelling of 78965876 in words is "seventy-eight million, nine hundred sixty-five thousand, eight hundred seventy-six".