72113806 has 8 divisors (see below), whose sum is σ = 108602424. Its totient is φ = 35913000.

The previous prime is 72113791. The next prime is 72113831. The reversal of 72113806 is 60831127.

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 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, 71325 + ... + 72328.

It is an arithmetic number, because the mean of its divisors is an integer number (13575303).

Almost surely, 2^72113806 is an apocalyptic number.

72113806 is a deficient number, since it is larger than the sum of its proper divisors (36488618).

72113806 is a wasteful number, since it uses less digits than its factorization.

72113806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143906.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 72113806 is about 8491.9848092186. The cubic root of 72113806 is about 416.2358399834.

The spelling of 72113806 in words is "seventy-two million, one hundred thirteen thousand, eight hundred six".