76789878 has 16 divisors (see below), whose sum is σ = 167541696. Its totient is φ = 23269640.

The previous prime is 76789871. The next prime is 76789879. The reversal of 76789878 is 87898767.

76789878 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76789871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581676 + ... + 581807.

It is an arithmetic number, because the mean of its divisors is an integer number (10471356).

Almost surely, 2^76789878 is an apocalyptic number.

76789878 is an abundant number, since it is smaller than the sum of its proper divisors (90751818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76789878 is a wasteful number, since it uses less digits than its factorization.

76789878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163499.

The product of its digits is 9483264, while the sum is 60.

The square root of 76789878 is about 8762.9833960815. The cubic root of 76789878 is about 425.0447528421.

Subtracting 76789878 from its reverse (87898767), we obtain a square (11108889 = 3333²).

The spelling of 76789878 in words is "seventy-six million, seven hundred eighty-nine thousand, eight hundred seventy-eight".