78047422 has 8 divisors (see below), whose sum is σ = 117131400. Its totient is φ = 39003624.

The previous prime is 78047419. The next prime is 78047443. The reversal of 78047422 is 22474087.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597 + ... + 13312.

It is an arithmetic number, because the mean of its divisors is an integer number (14641425).

Almost surely, 2^78047422 is an apocalyptic number.

78047422 is a deficient number, since it is larger than the sum of its proper divisors (39083978).

78047422 is a wasteful number, since it uses less digits than its factorization.

78047422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20090.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 78047422 is about 8834.4452004639. The cubic root of 78047422 is about 427.3524395252.

The spelling of 78047422 in words is "seventy-eight million, forty-seven thousand, four hundred twenty-two".