72206943 has 16 divisors (see below), whose sum is σ = 99378816. Its totient is φ = 46599840.

The previous prime is 72206903. The next prime is 72206957. The reversal of 72206943 is 34960227.

It is not a de Polignac number, because 72206943 - 2⁶ = 72206879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72206903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21880 + ... + 24962.

It is an arithmetic number, because the mean of its divisors is an integer number (6211176).

Almost surely, 2^72206943 is an apocalyptic number.

72206943 is a deficient number, since it is larger than the sum of its proper divisors (27171873).

72206943 is a wasteful number, since it uses less digits than its factorization.

72206943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 72206943 is about 8497.4668578348. The cubic root of 72206943 is about 416.4149563089.

The spelling of 72206943 in words is "seventy-two million, two hundred six thousand, nine hundred forty-three".