73172834 has 16 divisors (see below), whose sum is σ = 129486336. Its totient is φ = 30348000.

The previous prime is 73172809. The next prime is 73172837. The reversal of 73172834 is 43827137.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 73172794 and 73172803.

It is not an unprimeable number, because it can be changed into a prime (73172837) 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, 83867 + ... + 84734.

It is an arithmetic number, because the mean of its divisors is an integer number (8092896).

Almost surely, 2^73172834 is an apocalyptic number.

73172834 is a deficient number, since it is larger than the sum of its proper divisors (56313502).

73172834 is a wasteful number, since it uses less digits than its factorization.

73172834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168641.

The product of its digits is 28224, while the sum is 35.

The square root of 73172834 is about 8554.1121105583. The cubic root of 73172834 is about 418.2634916005.

The spelling of 73172834 in words is "seventy-three million, one hundred seventy-two thousand, eight hundred thirty-four".