73421191 has 8 divisors (see below), whose sum is σ = 75239424. Its totient is φ = 71613720.

The previous prime is 73421141. The next prime is 73421197. The reversal of 73421191 is 19112437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73421191 - 2⁷ = 73421063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73421197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12106 + ... + 17128.

It is an arithmetic number, because the mean of its divisors is an integer number (9404928).

Almost surely, 2^73421191 is an apocalyptic number.

73421191 is a deficient number, since it is larger than the sum of its proper divisors (1818233).

73421191 is a wasteful number, since it uses less digits than its factorization.

73421191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381.

The product of its digits is 1512, while the sum is 28.

The square root of 73421191 is about 8568.6166328060. The cubic root of 73421191 is about 418.7361686677.

The spelling of 73421191 in words is "seventy-three million, four hundred twenty-one thousand, one hundred ninety-one".