80726738 has 32 divisors (see below), whose sum is σ = 128304000. Its totient is φ = 38054016.

The previous prime is 80726719. The next prime is 80726741. The reversal of 80726738 is 83762708.

It is a junction number, because it is equal to n+sod(n) for n = 80726695 and 80726704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405563 + ... + 405761.

It is an arithmetic number, because the mean of its divisors is an integer number (4009500).

Almost surely, 2^80726738 is an apocalyptic number.

80726738 is a deficient number, since it is larger than the sum of its proper divisors (47577262).

80726738 is a wasteful number, since it uses less digits than its factorization.

80726738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 80726738 is about 8984.8059522730. The cubic root of 80726738 is about 432.1877648856.

The spelling of 80726738 in words is "eighty million, seven hundred twenty-six thousand, seven hundred thirty-eight".