72910834 has 4 divisors (see below), whose sum is σ = 109366254. Its totient is φ = 36455416.

The previous prime is 72910829. The next prime is 72910861. The reversal of 72910834 is 43801927.

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

It can be written as a sum of positive squares in only one way, i.e., 51796809 + 21114025 = 7197^2 + 4595^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72910834.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18227707 + ... + 18227710.

Almost surely, 2^72910834 is an apocalyptic number.

72910834 is a deficient number, since it is larger than the sum of its proper divisors (36455420).

72910834 is a wasteful number, since it uses less digits than its factorization.

72910834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36455419.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 72910834 is about 8538.7841054801. The cubic root of 72910834 is about 417.7636882278.

The spelling of 72910834 in words is "seventy-two million, nine hundred ten thousand, eight hundred thirty-four".