73750091 has 4 divisors (see below), whose sum is σ = 73969272. Its totient is φ = 73530912.

The previous prime is 73750087. The next prime is 73750111. The reversal of 73750091 is 19005737.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73750091 - 2² = 73750087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73750081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109085 + ... + 109758.

It is an arithmetic number, because the mean of its divisors is an integer number (18492318).

Almost surely, 2^73750091 is an apocalyptic number.

73750091 is a deficient number, since it is larger than the sum of its proper divisors (219181).

73750091 is a wasteful number, since it uses less digits than its factorization.

73750091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219180.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 73750091 is about 8587.7873168820. The cubic root of 73750091 is about 419.3604988090.

The spelling of 73750091 in words is "seventy-three million, seven hundred fifty thousand, ninety-one".