73430825 has 12 divisors (see below), whose sum is σ = 98058828. Its totient is φ = 54225600.

The previous prime is 73430821. The next prime is 73430867. The reversal of 73430825 is 52803437.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 652864 + 72777961 = 808^2 + 8531^2 .

It is not a de Polignac number, because 73430825 - 2² = 73430821 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73430791 and 73430800.

It is not an unprimeable number, because it can be changed into a prime (73430821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112646 + ... + 113295.

It is an arithmetic number, because the mean of its divisors is an integer number (8171569).

Almost surely, 2^73430825 is an apocalyptic number.

It is an amenable number.

73430825 is a deficient number, since it is larger than the sum of its proper divisors (24628003).

73430825 is a wasteful number, since it uses less digits than its factorization.

73430825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225964 (or 225959 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 73430825 is about 8569.1787821238. The cubic root of 73430825 is about 418.7544827618.

The spelling of 73430825 in words is "seventy-three million, four hundred thirty thousand, eight hundred twenty-five".