72835019 has 4 divisors (see below), whose sum is σ = 73653480. Its totient is φ = 72016560.

The previous prime is 72835003. The next prime is 72835033. The reversal of 72835019 is 91053827.

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

It is a cyclic number.

It is not a de Polignac number, because 72835019 - 2⁴ = 72835003 is a prime.

It is a super-2 number, since 2×72835019² = 10609879985460722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72835019.

It is not an unprimeable number, because it can be changed into a prime (72835519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409097 + ... + 409274.

It is an arithmetic number, because the mean of its divisors is an integer number (18413370).

Almost surely, 2^72835019 is an apocalyptic number.

72835019 is a deficient number, since it is larger than the sum of its proper divisors (818461).

72835019 is an equidigital number, since it uses as much as digits as its factorization.

72835019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818460.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 72835019 is about 8534.3435014065. The cubic root of 72835019 is about 417.6188366937.

The spelling of 72835019 in words is "seventy-two million, eight hundred thirty-five thousand, nineteen".