78004046 has 4 divisors (see below), whose sum is σ = 117006072. Its totient is φ = 39002022.

The previous prime is 78004009. The next prime is 78004051. The reversal of 78004046 is 64040087.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19501010 + ... + 19501013.

It is an arithmetic number, because the mean of its divisors is an integer number (29251518).

Almost surely, 2^78004046 is an apocalyptic number.

78004046 is a deficient number, since it is larger than the sum of its proper divisors (39002026).

78004046 is a wasteful number, since it uses less digits than its factorization.

78004046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39002025.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 78004046 is about 8831.9899230015. The cubic root of 78004046 is about 427.2732557245.

The spelling of 78004046 in words is "seventy-eight million, four thousand, forty-six".