73800945 has 12 divisors (see below), whose sum is σ = 127921716. Its totient is φ = 39360480.

The previous prime is 73800929. The next prime is 73800949. The reversal of 73800945 is 54900837.

It can be written as a sum of positive squares in 2 ways, for example, as 15186609 + 58614336 = 3897^2 + 7656^2 .

It is not a de Polignac number, because 73800945 - 2⁴ = 73800929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73800949) 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 11 ways as a sum of consecutive naturals, for example, 819966 + ... + 820055.

It is an arithmetic number, because the mean of its divisors is an integer number (10660143).

Almost surely, 2^73800945 is an apocalyptic number.

It is an amenable number.

73800945 is a deficient number, since it is larger than the sum of its proper divisors (54120771).

73800945 is a wasteful number, since it uses less digits than its factorization.

73800945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640032 (or 1640029 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 73800945 is about 8590.7476391755. The cubic root of 73800945 is about 419.4568659619.

The spelling of 73800945 in words is "seventy-three million, eight hundred thousand, nine hundred forty-five".