73454891 has 4 divisors (see below), whose sum is σ = 73576512. Its totient is φ = 73333272.

The previous prime is 73454869. The next prime is 73454921. The reversal of 73454891 is 19845437.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73454891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73454831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59900 + ... + 61113.

It is an arithmetic number, because the mean of its divisors is an integer number (18394128).

Almost surely, 2^73454891 is an apocalyptic number.

73454891 is a deficient number, since it is larger than the sum of its proper divisors (121621).

73454891 is a wasteful number, since it uses less digits than its factorization.

73454891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121620.

The product of its digits is 120960, while the sum is 41.

The square root of 73454891 is about 8570.5828856619. The cubic root of 73454891 is about 418.8002248810.

The spelling of 73454891 in words is "seventy-three million, four hundred fifty-four thousand, eight hundred ninety-one".