72626543 has 4 divisors (see below), whose sum is σ = 79228968. Its totient is φ = 66024120.

The previous prime is 72626537. The next prime is 72626557. The reversal of 72626543 is 34562627.

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 72626543 - 2²⁰ = 71577967 is a prime.

It is a super-2 number, since 2×72626543² = 10549229496261698, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72626513) 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, 3301196 + ... + 3301217.

It is an arithmetic number, because the mean of its divisors is an integer number (19807242).

Almost surely, 2^72626543 is an apocalyptic number.

72626543 is a deficient number, since it is larger than the sum of its proper divisors (6602425).

72626543 is a wasteful number, since it uses less digits than its factorization.

72626543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602424.

The product of its digits is 60480, while the sum is 35.

The square root of 72626543 is about 8522.1208041191. The cubic root of 72626543 is about 417.2200051721.

The spelling of 72626543 in words is "seventy-two million, six hundred twenty-six thousand, five hundred forty-three".