78196834 has 8 divisors (see below), whose sum is σ = 117378000. Its totient is φ = 39070836.

The previous prime is 78196831. The next prime is 78196843. The reversal of 78196834 is 43869187.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78196834² = 12229489695247112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78196831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10044 + ... + 16039.

It is an arithmetic number, because the mean of its divisors is an integer number (14672250).

Almost surely, 2^78196834 is an apocalyptic number.

78196834 is a deficient number, since it is larger than the sum of its proper divisors (39181166).

78196834 is a wasteful number, since it uses less digits than its factorization.

78196834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27584.

The product of its digits is 290304, while the sum is 46.

The square root of 78196834 is about 8842.8973758605. The cubic root of 78196834 is about 427.6249699051.

The spelling of 78196834 in words is "seventy-eight million, one hundred ninety-six thousand, eight hundred thirty-four".