78965446 has 8 divisors (see below), whose sum is σ = 135369360. Its totient is φ = 33842328.

The previous prime is 78965399. The next prime is 78965473. The reversal of 78965446 is 64456987.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78965446.

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, 2820181 + ... + 2820208.

It is an arithmetic number, because the mean of its divisors is an integer number (16921170).

Almost surely, 2^78965446 is an apocalyptic number.

78965446 is a deficient number, since it is larger than the sum of its proper divisors (56403914).

78965446 is a wasteful number, since it uses less digits than its factorization.

78965446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640398.

The product of its digits is 1451520, while the sum is 49.

The square root of 78965446 is about 8886.2503903503. The cubic root of 78965446 is about 429.0214742123.

The spelling of 78965446 in words is "seventy-eight million, nine hundred sixty-five thousand, four hundred forty-six".