72854671 has 4 divisors (see below), whose sum is σ = 73112392. Its totient is φ = 72596952.

The previous prime is 72854651. The next prime is 72854687. The reversal of 72854671 is 17645827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17645827 = 173 ⋅101999.

It is a cyclic number.

It is not a de Polignac number, because 72854671 - 2⁷ = 72854543 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 (72854651) 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, 128436 + ... + 129001.

It is an arithmetic number, because the mean of its divisors is an integer number (18278098).

Almost surely, 2^72854671 is an apocalyptic number.

72854671 is a deficient number, since it is larger than the sum of its proper divisors (257721).

72854671 is a wasteful number, since it uses less digits than its factorization.

72854671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257720.

The product of its digits is 94080, while the sum is 40.

The square root of 72854671 is about 8535.4947718337. The cubic root of 72854671 is about 417.6563932952.

The spelling of 72854671 in words is "seventy-two million, eight hundred fifty-four thousand, six hundred seventy-one".