78795850 has 144 divisors (see below), whose sum is σ = 191862720. Its totient is φ = 23500800.

The previous prime is 78795839. The next prime is 78795911. The reversal of 78795850 is 5859787.

78795850 = T₁₉₄₀ + T₁₉₄₁ + ... + T₁₉₈₀.

It is a junction number, because it is equal to n+sod(n) for n = 78795794 and 78795803.

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 71 ways as a sum of consecutive naturals, for example, 1921830 + ... + 1921870.

It is an arithmetic number, because the mean of its divisors is an integer number (1332380).

It is a vampire number, since it can be written as 8075 ⋅ 9758 (with its own digits).

Almost surely, 2^78795850 is an apocalyptic number.

78795850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78795850 is an abundant number, since it is smaller than the sum of its proper divisors (113066870).

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

78795850 is a wasteful number, since it uses less digits than its factorization.

78795850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 49.

The square root of 78795850 is about 8876.7026535758. The cubic root of 78795850 is about 428.7141141302.

The spelling of 78795850 in words is "seventy-eight million, seven hundred ninety-five thousand, eight hundred fifty".