72535443 has 16 divisors (see below), whose sum is σ = 101047296. Its totient is φ = 46228320.

The previous prime is 72535439. The next prime is 72535451. The reversal of 72535443 is 34453527.

It is not a de Polignac number, because 72535443 - 2² = 72535439 is a prime.

It is a super-2 number, since 2×72535443² = 10522780982412498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72535643) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3021 + ... + 12417.

It is an arithmetic number, because the mean of its divisors is an integer number (6315456).

Almost surely, 2^72535443 is an apocalyptic number.

72535443 is a deficient number, since it is larger than the sum of its proper divisors (28511853).

72535443 is a wasteful number, since it uses less digits than its factorization.

72535443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514.

The product of its digits is 50400, while the sum is 33.

The square root of 72535443 is about 8516.7742132805. The cubic root of 72535443 is about 417.0454838275.

The spelling of 72535443 in words is "seventy-two million, five hundred thirty-five thousand, four hundred forty-three".