78838676 has 24 divisors (see below), whose sum is σ = 165977280. Its totient is φ = 32009472.

The previous prime is 78838637. The next prime is 78838709. The reversal of 78838676 is 67683887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73565 + ... + 74628.

It is an arithmetic number, because the mean of its divisors is an integer number (6915720).

Almost surely, 2^78838676 is an apocalyptic number.

78838676 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

78838676 is an abundant number, since it is smaller than the sum of its proper divisors (87138604).

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

78838676 is a wasteful number, since it uses less digits than its factorization.

78838676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148223 (or 148221 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 78838676 is about 8879.1145954988. The cubic root of 78838676 is about 428.7917695963.

The spelling of 78838676 in words is "seventy-eight million, eight hundred thirty-eight thousand, six hundred seventy-six".