73455945 has 16 divisors (see below), whose sum is σ = 117712320. Its totient is φ = 39115584.

The previous prime is 73455857. The next prime is 73455947. The reversal of 73455945 is 54955437.

It is not a de Polignac number, because 73455945 - 2¹⁰ = 73454921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73455897 and 73455906.

It is not an unprimeable number, because it can be changed into a prime (73455947) 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 15 ways as a sum of consecutive naturals, for example, 7182 + ... + 14088.

It is an arithmetic number, because the mean of its divisors is an integer number (7357020).

Almost surely, 2^73455945 is an apocalyptic number.

It is an amenable number.

73455945 is a deficient number, since it is larger than the sum of its proper divisors (44256375).

73455945 is a wasteful number, since it uses less digits than its factorization.

73455945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624.

The product of its digits is 378000, while the sum is 42.

The square root of 73455945 is about 8570.6443748414. The cubic root of 73455945 is about 418.8022279848.

The spelling of 73455945 in words is "seventy-three million, four hundred fifty-five thousand, nine hundred forty-five".