72093534 has 8 divisors (see below), whose sum is σ = 144187080. Its totient is φ = 24031176.

The previous prime is 72093533. The next prime is 72093547. The reversal of 72093534 is 43539027.

It is a happy number.

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

72093534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72093495 and 72093504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72093533) 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 3 ways as a sum of consecutive naturals, for example, 6007789 + ... + 6007800.

It is an arithmetic number, because the mean of its divisors is an integer number (18023385).

Almost surely, 2^72093534 is an apocalyptic number.

72093534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72093534 is a wasteful number, since it uses less digits than its factorization.

72093534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12015594.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 72093534 is about 8490.7911292176. The cubic root of 72093534 is about 416.1968334732.

It can be divided in two parts, 72093 and 534, that added together give a palindrome (72627).

The spelling of 72093534 in words is "seventy-two million, ninety-three thousand, five hundred thirty-four".