72034943 has 4 divisors (see below), whose sum is σ = 72553320. Its totient is φ = 71516568.

The previous prime is 72034913. The next prime is 72034957. The reversal of 72034943 is 34943027.

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 72034943 - 2⁸ = 72034687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72034903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258980 + ... + 259257.

It is an arithmetic number, because the mean of its divisors is an integer number (18138330).

Almost surely, 2^72034943 is an apocalyptic number.

72034943 is a deficient number, since it is larger than the sum of its proper divisors (518377).

72034943 is a wasteful number, since it uses less digits than its factorization.

72034943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518376.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 72034943 is about 8487.3401604979. The cubic root of 72034943 is about 416.0840540676.

The spelling of 72034943 in words is "seventy-two million, thirty-four thousand, nine hundred forty-three".