72859838 has 8 divisors (see below), whose sum is σ = 109364040. Its totient is φ = 36405160.

The previous prime is 72859817. The next prime is 72859847. The reversal of 72859838 is 83895827.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8453 + ... + 14736.

It is an arithmetic number, because the mean of its divisors is an integer number (13670505).

Almost surely, 2^72859838 is an apocalyptic number.

72859838 is a deficient number, since it is larger than the sum of its proper divisors (36504202).

72859838 is a wasteful number, since it uses less digits than its factorization.

72859838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24762.

The product of its digits is 967680, while the sum is 50.

The square root of 72859838 is about 8535.7974437073. The cubic root of 72859838 is about 417.6662667393. Note that the first 3 decimals are identical.

The spelling of 72859838 in words is "seventy-two million, eight hundred fifty-nine thousand, eight hundred thirty-eight".