78877908 has 48 divisors (see below), whose sum is σ = 205349760. Its totient is φ = 26183232.

The previous prime is 78877907. The next prime is 78877921. The reversal of 78877908 is 80977887.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78877901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27016 + ... + 29792.

It is an arithmetic number, because the mean of its divisors is an integer number (4278120).

Almost surely, 2^78877908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78877908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102674880).

78877908 is an abundant number, since it is smaller than the sum of its proper divisors (126471852).

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

78877908 is a wasteful number, since it uses less digits than its factorization.

78877908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 54.

The square root of 78877908 is about 8881.3235500121. The cubic root of 78877908 is about 428.8628834621.

The spelling of 78877908 in words is "seventy-eight million, eight hundred seventy-seven thousand, nine hundred eight".