73994403 has 32 divisors (see below), whose sum is σ = 117135360. Its totient is φ = 40671360.

The previous prime is 73994383. The next prime is 73994407. The reversal of 73994403 is 30449937.

It is a Cunningham number, because it is equal to 8602²-1.

It is not a de Polignac number, because 73994403 - 2⁸ = 73994147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73994407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59593 + ... + 60821.

It is an arithmetic number, because the mean of its divisors is an integer number (3660480).

Almost surely, 2^73994403 is an apocalyptic number.

73994403 is a deficient number, since it is larger than the sum of its proper divisors (43140957).

73994403 is a wasteful number, since it uses less digits than its factorization.

73994403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 73994403 is about 8601.9999418740. Note that the first 4 decimals coincide. The cubic root of 73994403 is about 419.8230603891.

The spelling of 73994403 in words is "seventy-three million, nine hundred ninety-four thousand, four hundred three".