78713910 has 128 divisors (see below), whose sum is σ = 242611200. Its totient is φ = 17948160.

The previous prime is 78713909. The next prime is 78713923. The reversal of 78713910 is 1931787.

78713910 = 920² + 921² + ... + 1004².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49711 + ... + 51269.

It is an arithmetic number, because the mean of its divisors is an integer number (1895400).

Almost surely, 2^78713910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78713910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121305600).

78713910 is an abundant number, since it is smaller than the sum of its proper divisors (163897290).

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

78713910 is a wasteful number, since it uses less digits than its factorization.

78713910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 78713910 is about 8872.0860004849. The cubic root of 78713910 is about 428.5654556310.

It can be divided in two parts, 7871 and 3910, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 78713910 in words is "seventy-eight million, seven hundred thirteen thousand, nine hundred ten".