73994791 has 24 divisors (see below), whose sum is σ = 83931120. Its totient is φ = 65145600.

The previous prime is 73994777. The next prime is 73994803. The reversal of 73994791 is 19749937.

It is a happy number.

It is not a de Polignac number, because 73994791 - 2⁹ = 73994279 is a prime.

Its product of digits (428652) is a multiple of the sum of its prime divisors (294).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73994491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408721 + ... + 408901.

It is an arithmetic number, because the mean of its divisors is an integer number (3497130).

Almost surely, 2^73994791 is an apocalyptic number.

73994791 is a deficient number, since it is larger than the sum of its proper divisors (9936329).

73994791 is a wasteful number, since it uses less digits than its factorization.

73994791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 294 counting only the distinct ones).

The product of its digits is 428652, while the sum is 49.

The square root of 73994791 is about 8602.0224947392. The cubic root of 73994791 is about 419.8237941882.

The spelling of 73994791 in words is "seventy-three million, nine hundred ninety-four thousand, seven hundred ninety-one".