78876134 has 4 divisors (see below), whose sum is σ = 118314204. Its totient is φ = 39438066.

The previous prime is 78876113. The next prime is 78876139. The reversal of 78876134 is 43167887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43167887 = 7 ⋅6166841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78876139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19719032 + ... + 19719035.

It is an arithmetic number, because the mean of its divisors is an integer number (29578551).

Almost surely, 2^78876134 is an apocalyptic number.

78876134 is a deficient number, since it is larger than the sum of its proper divisors (39438070).

78876134 is a wasteful number, since it uses less digits than its factorization.

78876134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39438069.

The product of its digits is 225792, while the sum is 44.

The square root of 78876134 is about 8881.2236769490. The cubic root of 78876134 is about 428.8596683310.

The spelling of 78876134 in words is "seventy-eight million, eight hundred seventy-six thousand, one hundred thirty-four".