72854659 has 4 divisors (see below), whose sum is σ = 72874120. Its totient is φ = 72835200.

The previous prime is 72854651. The next prime is 72854687. The reversal of 72854659 is 95645827.

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 72854659 - 2³ = 72854651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72854651) 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, 2142 + ... + 12259.

It is an arithmetic number, because the mean of its divisors is an integer number (18218530).

Almost surely, 2^72854659 is an apocalyptic number.

72854659 is a deficient number, since it is larger than the sum of its proper divisors (19461).

72854659 is a wasteful number, since it uses less digits than its factorization.

72854659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19460.

The product of its digits is 604800, while the sum is 46.

The square root of 72854659 is about 8535.4940688867. The cubic root of 72854659 is about 417.6563703643.

The spelling of 72854659 in words is "seventy-two million, eight hundred fifty-four thousand, six hundred fifty-nine".