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94 = 247

• 94 can be written using four 4's:

See also 113.
94 has 4 divisors (see below), whose sum is σ = 144. Its totient is φ = 46.

The previous prime is 89. The next prime is 97. The reversal of 94 is 49.

It is a happy number.

94 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49 = 72.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a magnanimous number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 5, base 6, base 8, base 9, base 12, base 14 and base 16.

It is a nialpdrome in base 10, base 11, base 13 and base 15.

It is a congruent number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22 + ... + 25.

It is an arithmetic number, because the mean of its divisors is an integer number (36).

94 is a deficient number, since it is larger than the sum of its proper divisors (50).

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

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

The sum of its prime factors is 49.

The product of its digits is 36, while the sum is 13.

The square root of 94 is about 9.6953597148. The cubic root of 94 is about 4.5468359438.

Subtracting from 94 its sum of digits (13), we obtain a 4-th power (81 = 34).

Subtracting from 94 its reverse (49), we obtain a triangular number (45 = T9).

The spelling of 94 in words is "ninety-four", and thus it is an aban number.

Divisors: 1 2 47 94