78968473 has 4 divisors (see below), whose sum is σ = 79590400. Its totient is φ = 78346548.

The previous prime is 78968437. The next prime is 78968509. The reversal of 78968473 is 37486987.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37486987 = 23 ⋅1629869.

It is an interprime number because it is at equal distance from previous prime (78968437) and next prime (78968509).

It is a cyclic number.

It is not a de Polignac number, because 78968473 - 2¹⁷ = 78837401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78968473.

It is not an unprimeable number, because it can be changed into a prime (78968423) 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, 310773 + ... + 311026.

It is an arithmetic number, because the mean of its divisors is an integer number (19897600).

Almost surely, 2^78968473 is an apocalyptic number.

It is an amenable number.

78968473 is a deficient number, since it is larger than the sum of its proper divisors (621927).

78968473 is a wasteful number, since it uses less digits than its factorization.

78968473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621926.

The product of its digits is 2032128, while the sum is 52.

The square root of 78968473 is about 8886.4207080241. The cubic root of 78968473 is about 429.0269560674.

The spelling of 78968473 in words is "seventy-eight million, nine hundred sixty-eight thousand, four hundred seventy-three".