78235794 has 192 divisors, whose sum is σ = 227485440. Its totient is φ = 19595520.

The previous prime is 78235727. The next prime is 78235799. The reversal of 78235794 is 49753287.

78235794 is a `hidden beast` number, since 78 + 2 + 3 + 579 + 4 = 666.

It is a super-2 number, since 2×78235794² = 12241678925620872, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78235799) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1282524 + ... + 1282584.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^78235794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78235794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

78235794 is an abundant number, since it is smaller than the sum of its proper divisors (149249646).

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

78235794 is a wasteful number, since it uses less digits than its factorization.

78235794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 115 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 78235794 is about 8845.0999994347. The cubic root of 78235794 is about 427.6959766277.

The spelling of 78235794 in words is "seventy-eight million, two hundred thirty-five thousand, seven hundred ninety-four".