78793902 has 48 divisors (see below), whose sum is σ = 190225152. Its totient is φ = 23366160.

The previous prime is 78793879. The next prime is 78793903. The reversal of 78793902 is 20939787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78793903) 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 23 ways as a sum of consecutive naturals, for example, 5073 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (3963024).

Almost surely, 2^78793902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78793902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95112576).

78793902 is an abundant number, since it is smaller than the sum of its proper divisors (111431250).

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

78793902 is a wasteful number, since it uses less digits than its factorization.

78793902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533 (or 8530 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 78793902 is about 8876.5929274694. The cubic root of 78793902 is about 428.7105811947.

It can be divided in two parts, 7879 and 3902, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 78793902 in words is "seventy-eight million, seven hundred ninety-three thousand, nine hundred two".