72517834 has 8 divisors (see below), whose sum is σ = 108847008. Its totient is φ = 36235500.

The previous prime is 72517787. The next prime is 72517843. The reversal of 72517834 is 43871527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72517793 and 72517802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7542 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (13605876).

Almost surely, 2^72517834 is an apocalyptic number.

72517834 is a deficient number, since it is larger than the sum of its proper divisors (36329174).

72517834 is a wasteful number, since it uses less digits than its factorization.

72517834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23420.

The product of its digits is 47040, while the sum is 37.

The square root of 72517834 is about 8515.7403671084. The cubic root of 72517834 is about 417.0117332087.

The spelling of 72517834 in words is "seventy-two million, five hundred seventeen thousand, eight hundred thirty-four".