72274843 has 8 divisors (see below), whose sum is σ = 73597760. Its totient is φ = 70959240.

The previous prime is 72274831. The next prime is 72274847. The reversal of 72274843 is 34847227.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72274843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72274847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20548 + ... + 23806.

It is an arithmetic number, because the mean of its divisors is an integer number (9199720).

Almost surely, 2^72274843 is an apocalyptic number.

72274843 is a deficient number, since it is larger than the sum of its proper divisors (1322917).

72274843 is a wasteful number, since it uses less digits than its factorization.

72274843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657.

The product of its digits is 75264, while the sum is 37.

The square root of 72274843 is about 8501.4612273420. The cubic root of 72274843 is about 416.5454410717.

The spelling of 72274843 in words is "seventy-two million, two hundred seventy-four thousand, eight hundred forty-three".