94778 has 4 divisors (see below), whose sum is σ = 142170. Its totient is φ = 47388.

The previous prime is 94777. The next prime is 94781. The reversal of 94778 is 87749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87749 = 47 ⋅1867.

It can be written as a sum of positive squares in only one way, i.e., 94249 + 529 = 307^2 + 23^2 .

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (94771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23693 + ... + 23696.

2⁹⁴⁷⁷⁸ is an apocalyptic number.

94778 is a deficient number, since it is larger than the sum of its proper divisors (47392).

94778 is a wasteful number, since it uses less digits than its factorization.

94778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47391.

The product of its digits is 14112, while the sum is 35.

The square root of 94778 is about 307.8603579547. The cubic root of 94778 is about 45.5934560220.

The spelling of 94778 in words is "ninety-four thousand, seven hundred seventy-eight".